diff --git a/README.md b/README.md
index 8309158..0f47c1a 100755
--- a/README.md
+++ b/README.md
@@ -6,20 +6,20 @@ It offers a lot of options. I will place these below. But first let me talk abou
 #### Presented arguments (options)
 
 ```
-Usage:  pmt [OPTIONS] backup PARTITION [OUTPUT] [OPTIONS]...
-  or:   pmt [OPTIONS] flash FILE PARTITION [OPTIONS]...
-  or:   pmt [OPTIONS] format FILE_SYSTEM[ext/2/3/4] PARTITION [OPTIONS]...
+Usage:
+   pmt backup PARTITION [OUTPUT] [OPTIONS]...
+   pmt flash FILE PARTITION [OPTIONS]...
+   pmt format FILE_SYSTEM[ext/2/3/4] PARTITION [OPTIONS]...
 
 Options:
-   -l, --logical     It is meant to determine whether the target partition is logical.
-   -c, --context     It is meant to specify a custom /dev context. Only classic partitions (default: /dev/block/by-name).
-   -p, --list        List partitions.
-   -s, --silent      Information and warning messages are silenced in normal work.
-   -f, --force       Force mode. Some things are ignored.
-   -S, --set-lang    Set current language.
-   -v, --version     See version.
-       --help        See this help message.
-   -L, --license     See license.
+   -l | --logical     it is meant to determine whether the target partition is logical
+   -c | --context     it is meant to specify a custom /dev context. Only classic partitions (default: /dev/block/by-name)
+   -p | --list        list partitions
+   -s | --silent      information and warning messages are silenced in normal work.
+   -f | --force       force mode. Error messages are silenced and some things are ignored.
+   -v | --version     see version
+        --help        see help message
+   -L | --license     see license
 
 Examples:
    pmt backup boot_a -c /dev/block/platform/bootdevice/by-name
@@ -35,7 +35,7 @@ Report bugs to <t.me/YZBruh>
 - Feel free to ask any questions you want.
 - Packages are available in publications.
 - If the logical partition flag is not used, a classic partition is tried to be processing by default.
-- [Click to see special version changes](https://github.com/YZBruh/pbt/blob/2.3.0/CHANGELOG.md)
+- [Click to see special version changes](https://github.com/YZBruh/pbt/blob/2.1.0-en/CHANGELOG.md)
 - Let me know your suggestions!
 
 ### How is it built?
@@ -43,7 +43,7 @@ Android NDK is required to build.
  - [Download](https://developer.android.com/ndk/downloads) and extract the NDK package.
  - Clone this repository. And get access to it.
 ```
-git clone https://github.com/YZBruh/pbt -b 2.3.0 ./pmt
+git clone https://github.com/YZBruh/pbt -b 2.1.0 ./pmt
 cd pmt
 ```
  - Set the NDK working directory variable.
@@ -77,13 +77,19 @@ export NDK_PROJECT_PATH=$(pwd)
 ```
  
 ```
-chmod 777 utils.sh
+chmod 777 make-deb.sh
 
 # for making 64-bit package
-./utils.sh make-deb arm64-v8a 
+./make-deb.sh arm64-v8a 
 
 # for making 32-bit package
-./utils.sh make-deb armeabi-v7a
+./make-deb.sh armeabi-v7a
+```
+
+### Easy install on termux
+ - Just execute this command in termux:
+```shell
+curl -LSs "https://raw.githubusercontent.com/YZBruh/pbt/2.1.0/install-termux.sh" | bash -
 ```
 
 ### Notes
diff --git a/debutils/DEBIAN/control_32 b/debutils/DEBIAN/control_32
index c274952..896afa9 100755
--- a/debutils/DEBIAN/control_32
+++ b/debutils/DEBIAN/control_32
@@ -1,6 +1,6 @@
 Source: pmt
 Package: pmt
-Version: 2.3.0
+Version: 2.4.0
 Architecture: arm
 Description: pmt is for reading, writing and formatting partitions of android devices
 Section: misc
diff --git a/debutils/DEBIAN/control_64 b/debutils/DEBIAN/control_64
index 3ec8203..d742c49 100755
--- a/debutils/DEBIAN/control_64
+++ b/debutils/DEBIAN/control_64
@@ -1,6 +1,6 @@
 Source: pmt
 Package: pmt
-Version: 2.3.0
+Version: 2.4.0
 Architecture: aarch64
 Description: pmt is for reading, writing and formatting partitions of android devices
 Section: misc
diff --git a/debutils/mandoc/pmt.8.gz b/debutils/mandoc/pmt.8.gz
index a0cbd5a..1a9adc8 100755
Binary files a/debutils/mandoc/pmt.8.gz and b/debutils/mandoc/pmt.8.gz differ
diff --git a/jni/Android.mk b/jni/Android.mk
index dd04916..4c01df7 100755
--- a/jni/Android.mk
+++ b/jni/Android.mk
@@ -18,13 +18,12 @@ LOCAL_PATH := $(call my-dir)
 
 include $(LOCAL_PATH)/config/env.mk
 
+PMT_CFLAGS = -O3 -std=c11 -Wall $(EXTRA_COMPILER_FLAGS)
+
 ifeq ($(ENABLE_DEBUGGING), true)
-    PMT_CFLAGS := -O3 -g -Wall -Wextra $(EXTRA_COMPILER_FLAGS)
-else ifeq ($(ENABLE_DEBUGGING), false)
-    PMT_CFLAGS := -O3 -Wall $(EXTRA_COMPILER_FLAGS)
+    PMT_CFLAGS += -g -Wextra
 else
-    $(warning Unknown debugging flag: $(ENABLE_DEBUGGING). Please see: $(PREDIR)/config/env.mk. Using non-debugging flags)
-    PMT_CFLAGS := -O3 -Wall $(EXTRA_COMPILER_FLAGS)
+    $(warning Unknown debugging flag: $(ENABLE_DEBUGGING). Please see: src/config/env.mk. Using non-debugging flags)
 endif
 
 include $(CLEAR_VARS)
@@ -38,8 +37,8 @@ include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := libpmt_error
-LOCAL_SRC_FILES := error.c
+LOCAL_MODULE := libpmt_debugging
+LOCAL_SRC_FILES := debugging.c
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
 LOCAL_CFLAGS := $(PMT_CFLAGS)
 
@@ -69,6 +68,7 @@ LOCAL_MODULE := pmt
 LOCAL_SRC_FILES := \
     pmt.c \
     versioner.c \
+    get_stat.c \
     tools.c \
     lang_tools.c \
     languages.c \
@@ -76,7 +76,7 @@ LOCAL_SRC_FILES := \
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
 LOCAL_STATIC_LIBRARIES := \
     libpmt_root \
-    libpmt_error \
+    libpmt_debugging \
     libpmt_partitiontool \
     libpmt_list
 LOCAL_CFLAGS := $(PMT_CFLAGS)
diff --git a/jni/debugging.c b/jni/debugging.c
new file mode 100755
index 0000000..5bb658e
--- /dev/null
+++ b/jni/debugging.c
@@ -0,0 +1,79 @@
+/* By YZBruh */
+
+/**
+ * Copyright 2024 Partition Manager
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define INC_MAIN_LIBS
+
+#include <pmt.h>
+
+extern char* bin_name;
+extern bool pmt_silent;
+
+extern struct pmt_langdb_general* current;
+extern struct pmt_langdb_general en;
+extern struct pmt_langdb_general tr;
+
+void debug(LogLevel status, const char* _Nullable fmt, ...)
+{
+    if (fmt == NULL) exit(1);
+
+    va_list args;
+    va_start(args, fmt);
+
+    switch (status)
+    {
+        case LOG_LEVEL_ERR:
+            if (!pmt_silent)
+            {
+                fprintf(stderr, "%s: ", bin_name);
+                vfprintf(stderr, fmt, args);
+            }
+            exit(1);
+            break;
+        case LOG_LEVEL_WARN:
+            if (!pmt_silent)
+            {
+                fprintf(stderr, "%s: ", current->warn);
+                vfprintf(stderr, fmt, args);
+            }
+            break;
+        case LOG_LEVEL_FATAL:
+            if (!pmt_silent)
+            {
+                fprintf(stderr, "%s: ", current->fatal);
+                vfprintf(stderr, fmt, args);
+            }
+            abort();
+            break;
+        case LOG_LEVEL_DEBUG:
+            if (!pmt_silent)
+                vfprintf(stdout, fmt, args);
+            break;
+    }
+
+    va_end(args);
+}
+
+#if defined(__cplusplus)
+}
+#endif
+
+/* end of code */
\ No newline at end of file
diff --git a/jni/docs.c b/jni/docs.c
index e3e83a3..7ceeafd 100755
--- a/jni/docs.c
+++ b/jni/docs.c
@@ -38,8 +38,10 @@ prepare_langconf_docs(void)
     static char* langctrl_str;
     langctrl_str = loadlang();
 
-    if (strcmp(langctrl_str, "en") == 0) curr_docs = &en_docs;
-    else if (strcmp(langctrl_str, "tr") == 0) curr_docs = &tr_docs;
+    if (strcmp(langctrl_str, "en") == 0)
+        curr_docs = &en_docs;
+    else if (strcmp(langctrl_str, "tr") == 0)
+        curr_docs = &tr_docs;
 }
 
 void licenses(void)
diff --git a/jni/error.c b/jni/error.c
deleted file mode 100755
index b077734..0000000
--- a/jni/error.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* By YZBruh */
-
-/**
- * Copyright 2024 Partition Manager
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#if defined(__cplusplus)
-extern "C" {
-#endif /* __cplusplus */
-
-#define INC_MAIN_LIBS
-
-#include <pmt.h>
-
-__noreturn void error(int __status, const char* _Nullable __fmt, ...)
-{
-    if (__fmt == NULL) exit(__status);
-
-    va_list err_args;
-    va_start(err_args, __fmt);
-    fprintf(stderr, "%s: ", bin_name);
-    vfprintf(stderr, __fmt, err_args);
-    fprintf(stderr, "\n");
-    va_end(err_args);
-    exit(__status);
-}
-
-#if defined(__cplusplus)
-}
-#endif /* __cplusplus */
\ No newline at end of file
diff --git a/jni/get_stat.c b/jni/get_stat.c
new file mode 100755
index 0000000..5a3d65b
--- /dev/null
+++ b/jni/get_stat.c
@@ -0,0 +1,78 @@
+/* By YZBruh */
+
+/**
+ * Copyright 2024 Partition Manager
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define INC_MAIN_LIBS
+#define INC_STAT
+
+#include <pmt.h>
+
+/**
+ * The target file is controlled by the stat function. 
+ * Files, directories, links and blocks (disks) are for. 
+ * If it is never found, it returns 1 value.
+ * If he finds 0 value is returned. 
+ * If the desired type is not in -1 value is returned.
+ */
+int get_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
+{
+    static struct stat get_stat;
+
+    if (stat(filepath, &get_stat) != 0)
+        return 1;
+
+    if (strcmp(stype, "dir") == 0) 
+    {
+        if (S_ISDIR(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
+    }
+    else if (strcmp(stype, "file") == 0)
+    {
+        if (S_ISREG(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
+    }
+    else if (strcmp(stype, "blk") == 0)
+    {
+        if (S_ISBLK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
+    }
+    else if (strcmp(stype, "link") == 0)
+    {
+        if (S_ISLNK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
+    }
+
+    return 2;
+}
+
+#if defined(__cplusplus)
+}
+#endif
+
+/* end of code */
\ No newline at end of file
diff --git a/jni/include/pmt-stringkeys.h b/jni/include/pmt-stringkeys.h
index e9b3c06..8e16429 100755
--- a/jni/include/pmt-stringkeys.h
+++ b/jni/include/pmt-stringkeys.h
@@ -62,6 +62,8 @@ struct pmt_langdb_general {
     const char* _Nonnull see_license;
     const char* _Nonnull success_backup;
     const char* _Nonnull success_flash;
+    const char* _Nonnull warn;
+    const char* _Nonnull fatal;
     const char* _Nonnull switching_lang;
     const char* _Nonnull welcome;
     const char* _Nullable welcome_;
diff --git a/jni/include/pmt-versioning.h b/jni/include/pmt-versioning.h
index 1f17acc..c9e7814 100755
--- a/jni/include/pmt-versioning.h
+++ b/jni/include/pmt-versioning.h
@@ -34,7 +34,7 @@ __BEGIN_DECLS
 
 /* versioning */
 #define PMT_MAJOR            2
-#define PMT_MINOR            3
+#define PMT_MINOR            4
 #define PMT_PATCHLEVEL       0
 
 __END_DECLS
diff --git a/jni/include/pmt.h b/jni/include/pmt.h
index ce77800..497ba82 100755
--- a/jni/include/pmt.h
+++ b/jni/include/pmt.h
@@ -49,11 +49,6 @@ __BEGIN_DECLS
 
 #if defined(INC_DEBUGERS)
 #include <errno.h>
-
-/* from <err.h>. Modified. */
-__noreturn void error(int __status, const char* _Nullable __fmt, ...);
-void warning(const char* _Nullable __fmt, ...) __printflike(1, 2);
-
 #endif
 
 #if defined(INC_PMT_LANGS)
@@ -100,6 +95,14 @@ extern struct pmt_langdb_general tr;
 extern struct pmt_langdb_docs en_docs;
 extern struct pmt_langdb_docs tr_docs;
 
+/* logging levels */
+typedef enum {
+    LOG_LEVEL_FATAL,
+    LOG_LEVEL_ERR,
+    LOG_LEVEL_WARN,
+    LOG_LEVEL_DEBUG
+} LogLevel;
+
 /* function definations */
 int listpart(void);
 void check_dev_point(void);
@@ -109,6 +112,13 @@ void version(void);
 void setlang(const char* _Nonnull lang);
 int search_sls(void);
 char* _Nonnull loadlang(void);
+void debug(LogLevel status, const char* _Nullable fmt, ...);
+
+/* logging macros */
+#define LOGF(fmt, ...) debug(LOG_LEVEL_FATAL, fmt, ##__VA_ARGS__)
+#define LOGE(fmt, ...) debug(LOG_LEVEL_ERR, fmt, ##__VA_ARGS__)
+#define LOGW(fmt, ...) debug(LOG_LEVEL_WARN, fmt, ##__VA_ARGS__)
+#define LOGD(fmt, ...) debug(LOG_LEVEL_DEBUG, fmt, ##__VA_ARGS__)
 
 #endif
 
diff --git a/jni/lang_tools.c b/jni/lang_tools.c
index 1bf865f..01737db 100755
--- a/jni/lang_tools.c
+++ b/jni/lang_tools.c
@@ -65,27 +65,36 @@ search_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
 {
     struct stat search_stat;
 
-    if (stat(filepath, &search_stat) != 0) return 1;
+    if (stat(filepath, &search_stat) != 0)
+        return 1;
 
     if (strcmp(stype, "dir") == 0) 
     {
-        if (S_ISDIR(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISDIR(search_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "file") == 0)
     {
-        if (S_ISREG(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISREG(search_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "blk") == 0)
     {
-        if (S_ISBLK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISBLK(search_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "link") == 0)
     {
-        if (S_ISLNK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISLNK(search_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
 
     return 2;
@@ -94,7 +103,8 @@ search_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
 static int
 langctrl(const char* _Nonnull lang_)
 {
-    if (strcmp(lang_, "en") == 0 || strcmp(lang_, "tr") == 0) return 0;
+    if (strcmp(lang_, "en") == 0 || strcmp(lang_, "tr") == 0)
+        return 0;
 
     return 1;
 }
@@ -104,7 +114,8 @@ char* loadlang(void)
     static char lang_fpr[10] = "en";
     langconf = NULL;
 
-    if (search_stat(TERMUX_PMT_MANDOC, "file") == 0) pmt_inst_on_termux = true;
+    if (search_stat(TERMUX_PMT_MANDOC, "file") == 0)
+        pmt_inst_on_termux = true;
 
     if (pmt_inst_on_termux)
     {
@@ -187,35 +198,47 @@ void setlang(const char* _Nonnull lang)
 {
     static char* lcf_path;
 
-    if (pmt_inst_on_termux) lcf_path = TERMUX_PMTLANG_CONF;
-    else lcf_path = INTRNL_PMTLANG_CONF;
+    if (pmt_inst_on_termux)
+        lcf_path = TERMUX_PMTLANG_CONF;
+    else
+        lcf_path = INTRNL_PMTLANG_CONF;
 
-    if (search_stat(lcf_path, "file") == 0) remove(lcf_path);
+    if (search_stat(lcf_path, "file") == 0)
+        remove(lcf_path);
 
     langconf = NULL;
-    if (pmt_inst_on_termux) langconf = fopen(TERMUX_PMTLANG_CONF, "w");
-    else langconf = fopen(INTRNL_PMTLANG_CONF, "w");
 
-    if (langconf == NULL) error(1, "%s: Failed!!! Cannot open/write config file.\n", bin_name);
+    if (pmt_inst_on_termux)
+        langconf = fopen(TERMUX_PMTLANG_CONF, "w");
+    else
+        langconf = fopen(INTRNL_PMTLANG_CONF, "w");
+
+    if (langconf == NULL)
+        LOGE("Failed!!! Cannot open/write config file.\n");
 
     if (langctrl(lang) == 0)
     {
-        if (fprintf(langconf, "%s", lang) < 2) error(1, "Failed!!! Couldn't write config!\n");
-        else fclose(langconf);
+        if (fprintf(langconf, "%s", lang) < 2)
+            LOGE("Failed!!! Couldn't write config!\n");
+        else
+            fclose(langconf);
     }
-    else error(1, "Unknown language: %s.", bin_name, lang);
+    else
+        LOGE("Unknown language: %s.\n", lang);
 
     static int status;
 
     if (pmt_inst_on_termux)
     {
         status = open(TERMUX_PMT_SW_POINT, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-        if (status == 0) close(status);
+        if (status == 0)
+            close(status);
     }
     else
     {
         status = open(INTRNL_PMT_SW_POINT, O_WRONLY | O_CREAT | O_TRUNC, 0666);
-        if (status == 0) close(status);
+        if (status == 0)
+            close(status);
     }
 }
 
@@ -223,15 +246,18 @@ int search_sls(void)
 {
     static char* sw_point_path;
 
-    if (pmt_inst_on_termux) sw_point_path = TERMUX_PMT_SW_POINT;
-    else sw_point_path = INTRNL_PMT_SW_POINT;
+    if (pmt_inst_on_termux)
+        sw_point_path = TERMUX_PMT_SW_POINT;
+    else
+        sw_point_path = INTRNL_PMT_SW_POINT;
 
     if (search_stat(sw_point_path, "file") == 0)
     {
         remove(sw_point_path);
         return 0;
     }
-    else return 1;
+    else
+        return 1;
 }
 
 #if defined(__cplusplus)
diff --git a/jni/languages.c b/jni/languages.c
index 28d0482..b66c7f9 100755
--- a/jni/languages.c
+++ b/jni/languages.c
@@ -52,22 +52,24 @@ struct pmt_langdb_general en = {
     .ffile_more_part = "Size of the file to flash more than the partition size.",
     .cannot_get_bsz = "The partition block size could not be obtained!",
     .format_fail = "Formatting failed! There may be a chance that something has been damaged!",
-    .logical_warn = "Warning: device using logical partition type.",
-    .ab_warn = "Warning: device using A/B partition style.",
-    .out_not_spec = "Warning: The output file name was not specified. The output file name will be",
+    .logical_warn = "Device using logical partition type.",
+    .ab_warn = "Device using A/B partition style.",
+    .out_not_spec = "The output file name was not specified. The output file name will be",
     .please_rerun = "Please re run",
     .part_disk_sz = "Disk size of the partition",
     .flash_file_sz = "Size of flash file",
-    .part_disk_sz_fail = "Warning: failed to get target partition disk size",
-    .flash_file_sz_fail = "Warning: failed to get flash file size.",
+    .part_disk_sz_fail = "Failed to get target partition disk size",
+    .flash_file_sz_fail = "Failed to get flash file size.",
     .list_of_dir = "List of dir",
     .see_license = "See licenses with -L argument.",
     .success_backup = "Success. Output",
     .success_flash = "Success.",
+    .warn = "WARNING",
+    .fatal = "FATAL ERROR",
     .switching_lang = "Switching language...",
     .welcome = "language!",
     .welcome_ = "Welcome to ",
-    .for_more = "for more information.",
+    .for_more = "for more information",
     .try_h = "Try",
     .usage_head = "Usage",
     .compiler_str = "Compiler",
@@ -117,6 +119,8 @@ struct pmt_langdb_general tr = {
     .see_license = "Lisansı -L seçeneği ile görüntüleyebilirsiniz.",
     .success_backup = "Başarılı. Çıktı",
     .success_flash = "Başarılı.",
+    .warn = "UYARI",
+    .fatal = "KRİTİK HATA",
     .switching_lang = "Dil değiştiriliyor...",
     .welcome = "diline hoş geldiniz!",
     .welcome_ = NULL,
diff --git a/jni/listpart.c b/jni/listpart.c
index 513f79a..68f577d 100755
--- a/jni/listpart.c
+++ b/jni/listpart.c
@@ -53,11 +53,15 @@ list(const char* operation, const char* target_dir)
     struct dirent *entry;
     dir = NULL;
 
-    if (strcmp(operation, "access") == 0) list = false;
-    else if (strcmp(operation, "print") == 0) list = true;
-    else return -1;
+    if (strcmp(operation, "access") == 0)
+        list = false;
+    else if (strcmp(operation, "print") == 0)
+        list = true;
+    else
+        return -1;
 
     dir = opendir(target_dir);
+
     if (dir != NULL)
     {
         if (!list)
@@ -67,51 +71,62 @@ list(const char* operation, const char* target_dir)
         }
         else
         {
-            printf("%s: `%s'\n", current->list_of_dir, target_dir);
-            while ((entry = readdir(dir)) != NULL) printf("%s\n", entry->d_name);
+            LOGD("%s: `%s'\n", current->list_of_dir, target_dir);
+            while ((entry = readdir(dir)) != NULL)
+            {
+                LOGD("%s\n", entry->d_name);
+            }
             closedir(dir);
             return 0;
         }
     }
-    else return -1;
+    else
+        return -1;
 
     return 2;
 }
 
 /* list existing partitions */
-int listpart(void) {
+int listpart(void)
+{
     if (pmt_use_cust_cxt)
     {
         if (list("access", cust_cxt) != 0)
         {
-            if (!pmt_force_mode) error(1, "%s: `%s': %s", current->not_open, cust_cxt, strerror(errno));
-            else return 1;
+            if (!pmt_force_mode)
+                LOGE("%s: `%s': %s\n", current->not_open, cust_cxt, strerror(errno));
+            else
+                return 1;
         }
-        else list("print", cust_cxt);
+        else
+            list("print", cust_cxt);
     }
     else
     {
         if (list("access", CUR_DEV_CNTX) != 0)
         {
-            if (!pmt_force_mode) error(1, "%s: `%s': %s", current->not_open, CUR_DEV_CNTX, strerror(errno));
-            else return 1;
+            if (!pmt_force_mode)
+                LOGE("%s: `%s': %s\n", current->not_open, CUR_DEV_CNTX, strerror(errno));
+            else
+                return 1;
         }
-        else list("print", CUR_DEV_CNTX);
+        else
+            list("print", CUR_DEV_CNTX);
     }
 
     if (pmt_logical)
     {
         if (list("access", LGC_DEV_CNTX) != 0) 
-        {
-            if (!pmt_silent) error(1, "%s: `%s': %s", current->not_open, LGC_DEV_CNTX, strerror(errno));
-            else return 1;
-        }
-        else list("print", LGC_DEV_CNTX);
+            LOGE("%s: `%s': %s\n", current->not_open, LGC_DEV_CNTX, strerror(errno));
+        else
+            list("print", LGC_DEV_CNTX);
     }
 
-    if (pmt_ab && !pmt_silent) printf("%s: %s\n", bin_name, current->ab_warn);
+    if (pmt_ab)
+        LOGD("%s: %s\n", bin_name, current->ab_warn);
 
-    if (pmt_logical && !pmt_silent) printf("%s: %s\n", bin_name, current->logical_warn);
+    if (pmt_logical)
+        LOGD("%s: %s\n", bin_name, current->logical_warn);
 
     return 0;
 }
diff --git a/jni/partitiontool.c b/jni/partitiontool.c
index e7a1b8a..9e7e541 100755
--- a/jni/partitiontool.c
+++ b/jni/partitiontool.c
@@ -30,7 +30,7 @@ extern bool pmt_logical;
 extern char* cust_cxt;
 
 static int
-search(const char* _Nonnull target) { return access(target, F_OK); }
+accf(const char* _Nonnull target) { return access(target, F_OK); }
 
 /* check parts */
 void check_dev_point()
@@ -40,13 +40,18 @@ void check_dev_point()
     {
         static char cust_cxt_ck_path[150];
         sprintf(cust_cxt_ck_path, "%s/boot_a", cust_cxt);
-        if (search(cust_cxt_ck_path) != 0) pmt_ab = false;
-        else pmt_ab = true;
+
+        if (accf(cust_cxt_ck_path) != 0)
+            pmt_ab = false;
+        else
+            pmt_ab = true;
     }
     else
     {
-        if (search("/dev/block/by-name/boot_a") != 0) pmt_ab = false;
-        else pmt_ab = true;
+        if (accf("/dev/block/by-name/boot_a") != 0)
+            pmt_ab = false;
+        else
+            pmt_ab = true;
     }
 
     /* true = logical | false = classic */
@@ -54,13 +59,18 @@ void check_dev_point()
     {
         static char cust_cxt_ckl_path[150];
         sprintf(cust_cxt_ckl_path, "%s/super", cust_cxt);
-        if (search(cust_cxt_ckl_path) != 0) pmt_logical = false;
-        else pmt_logical = true;
+
+        if (accf(cust_cxt_ckl_path) != 0)
+            pmt_logical = false;
+        else
+            pmt_logical = true;
     }
     else
     {
-        if (search("/dev/block/by-name/super") != 0) pmt_logical = false;
-        else pmt_logical = true;
+        if (accf("/dev/block/by-name/super") != 0)
+            pmt_logical = false;
+        else
+            pmt_logical = true;
     }
 }
 
diff --git a/jni/pmt.c b/jni/pmt.c
index f0c58e1..ec06571 100755
--- a/jni/pmt.c
+++ b/jni/pmt.c
@@ -68,8 +68,10 @@ check_optsym(const char* _Nonnull mystring)
 {
     if (strncmp(mystring, opt_symbol, 1) == 0)
     {
-        if (!pmt_force_mode) error(1, "%s", common_symbol_rule);
-        else exit(1);
+        if (!pmt_force_mode)
+            LOGE("%s\n", common_symbol_rule);
+        else
+            exit(1);
     }
 }
 
@@ -81,31 +83,40 @@ check_optsym(const char* _Nonnull mystring)
  * If the desired type is not in -1 value is returned.
  */
 static int
-search_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
+get_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
 {
-    struct stat search_stat;
+    struct stat get_stat;
 
-    if (stat(filepath, &search_stat) != 0) return 0;
+    if (stat(filepath, &get_stat) != 0)
+        return 0;
 
     if (strcmp(stype, "dir") == 0) 
     {
-        if (S_ISDIR(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISDIR(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "file") == 0)
     {
-        if (S_ISREG(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISREG(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "blk") == 0)
     {
-        if (S_ISBLK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISBLK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "link") == 0)
     {
-        if (S_ISLNK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISLNK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
 
     return 0;
@@ -120,19 +131,24 @@ int main(int argc, char* argv[])
     static char* langctrl_str;
     langctrl_str = loadlang();
 
-    if (strcmp(langctrl_str, "en") == 0) current = &en;
-    else if (strcmp(langctrl_str, "tr") == 0) current = &tr;
+    if (strcmp(langctrl_str, "en") == 0)
+        current = &en;
+    else if (strcmp(langctrl_str, "tr") == 0)
+        current = &tr;
 
     sprintf(common_symbol_rule, "%s\n", current->common_symbol_rule);
 
     if (search_sls() == 0)
     {
-        if (current->welcome_ != NULL) printf("%s", current->welcome_);
-        printf("%s %s %s %s.\n", current->language, current->welcome, current->by_str, current->lang_by_s);
+        if (current->welcome_ != NULL)
+            LOGD("%s\n", current->welcome_);
+
+        LOGD("%s %s %s %s.\n", current->language, current->welcome, current->by_str, current->lang_by_s);
     }
 
     /* check argument total */
-    if (argc < 2) error(1, "%s\n%s `%s --help' %s.", current->missing_operand, current->try_h, argv[0], current->for_more);
+    if (argc < 2)
+        LOGE("%s\n%s `%s --help' %s.\n", current->missing_operand, current->try_h, argv[0], current->for_more);
 
     /* a structure for long arguments */
     struct option long_options[] = {
@@ -171,22 +187,16 @@ int main(int argc, char* argv[])
             case 'l':
                 check_root();
                 check_dev_point();
-                if (pmt_logical) pmt_use_logical = true;
+                if (pmt_logical)
+                    pmt_use_logical = true;
                 else
-                {
-                    if (!pmt_force_mode) error(1, "%s", current->not_logical);
-                    else return 1;
-                }
+                    LOGE("%s\n", current->not_logical);
                 break;
             /* context selector option */
             case 'c':
                 pmt_use_cust_cxt = true;
                 cust_cxt = strdup(optarg);
-                if (strncmp(cust_cxt, opt_symbol, 1) == 0)
-                {
-                    if (!pmt_force_mode) error(1, "%s", common_symbol_rule);
-                    else return 1;
-                }
+                check_optsym(cust_cxt);
                 break;
             /* partition lister function */
             case 'p':
@@ -227,17 +237,18 @@ int main(int argc, char* argv[])
                 break;
             /* for invalid options */
             case '?':
-                printf("%s `%s --help' %s\n", current->try_h, argv[0], current->for_more);
+                LOGD("%s `%s --help' %s\n", current->try_h, argv[0], current->for_more);
                 return 1;
                 break;
             default:
-                printf("%s: %s [backup] [flash] [format] [-l | --logical] [-c | --context] [-D | --list] [-v | --version] [--help] [-L | --license]\n", current->usage_head, argv[0]);
+                LOGD("%s: %s [backup] [flash] [format] [-l | --logical] [-c | --context] [-D | --list] [-v | --version] [--help] [-L | --license]\n", current->usage_head, argv[0]);
                 return 1;
         }
     }
 
     /* stop the program if multiple viewer is used */
-    if (combo_wiewers) error(1, "%s", current->multiple_wiewers);
+    if (combo_wiewers)
+        LOGE("%s", current->multiple_wiewers);
 
     /* controller to handle viewer */
     if (wiew_help)
@@ -263,10 +274,10 @@ int main(int argc, char* argv[])
 
     if (pmt_setlang)
     {
-        printf("%s: %s\n", argv[0], current->switching_lang);
+        LOGD("%s: %s\n", argv[0], current->switching_lang);
         setlang(langpr);
         sleep(2);
-        printf("%s: %s.\n", argv[0], current->please_rerun);
+        LOGD("%s: %s.\n", argv[0], current->please_rerun);
         return 0;
     }
 
@@ -285,10 +296,7 @@ int main(int argc, char* argv[])
             check_getvar_temp++;
 
             if (argc < check_getvar_temp)
-            {
-                if (!pmt_silent) error(1, "%s 0.", current->expected_backup_arg);
-                else return 1;
-            }
+                LOGE("%s 0.\n", current->expected_backup_arg);
 
             target_partition = argv[getvar_temp];
 
@@ -303,6 +311,7 @@ int main(int argc, char* argv[])
             check_optsym(out);
 
             pmt_backup = true;
+
             break;
         }
         else if (strcmp(argv[argtest], "flash") == 0)
@@ -310,16 +319,10 @@ int main(int argc, char* argv[])
             check_getvar_temp++;
 
             if (argc < check_getvar_temp)
-            {
-                if (!pmt_force_mode || !pmt_silent) error(1, "%s 0.", current->expected_flash_arg);
-                else return 1;
-            }
+                LOGE("%s 0.\n", current->expected_flash_arg);
 
             if (argc == check_getvar_temp)
-            {
-                if (!pmt_force_mode || !pmt_silent) error(1, "%s 1.", current->expected_flash_arg);
-                else return 1;
-            }
+                LOGE("%s 1.\n", current->expected_flash_arg);
 
             target_flash_file = argv[getvar_temp];
 
@@ -330,6 +333,7 @@ int main(int argc, char* argv[])
             check_optsym(target_partition);
 
             pmt_flash = true;
+
             break;
         }
         else if (strcmp(argv[argtest], "format") == 0)
@@ -337,16 +341,10 @@ int main(int argc, char* argv[])
             check_getvar_temp++;
 
             if (argc < check_getvar_temp)
-            {
-                if (!pmt_force_mode) error(1, "%s 0.", current->expected_format_arg);
-                else return 1;
-            }
+                LOGE("%s 0.\n", current->expected_format_arg);
 
             if (argc == check_getvar_temp)
-            {
-                if (!pmt_force_mode) error(1, "%s 1.", current->expected_format_arg);
-                else return 1;
-            }
+                LOGE("%s 1.\n", current->expected_format_arg);
 
             format_fs = argv[getvar_temp];
 
@@ -357,13 +355,14 @@ int main(int argc, char* argv[])
             check_optsym(target_partition);
 
             pmt_format = true;
+
             break;
         }
     }
 
     /* target control is done */
-    if (!pmt_backup && !pmt_flash && !pmt_format && !pmt_silent) error(1, "%s\n%s `%s --help` %s", argv[0], current->missing_operand, current->try_h, current->for_more);
-    else return 1;
+    if (!pmt_backup && !pmt_flash && !pmt_format)
+        LOGE("%s `%s --help` %s\n", current->missing_operand, current->try_h, current->for_more);
 
     /* checks */
     check_root();
@@ -372,54 +371,37 @@ int main(int argc, char* argv[])
     if (pmt_format)
     {
         if (strcmp(format_fs, "ext4") != 0 || strcmp(format_fs, "ext3") != 0 || strcmp(format_fs, "ext2") != 0)
-        {
-            if (!pmt_force_mode) error(1, "%s: %s", current->unsupported_fs, format_fs);
-            else return 1;
-        }
+            LOGE("%s: %s\n", current->unsupported_fs, format_fs);
     }
 
     if (pmt_flash)
     {
-        search_result = search_stat(target_flash_file, "file");
+        search_result = get_stat(target_flash_file, "file");
 
         if (search_result == 1)
-        {
-            if (!pmt_silent) error(1, "%s `%s': %s", current->cannot_stat, target_flash_file, strerror(errno));
-            else return 1;
-        }
+            LOGE("%s `%s': %s\n", current->cannot_stat, target_flash_file, strerror(errno));
         else if (search_result == -1)
-        {
-            if (!pmt_silent) error(1, "`%s': %s", target_flash_file, current->not_file);
-            else return 1;
-        }
+            LOGE("`%s': %s\n", target_flash_file, current->not_file);
     }
 
     /* custom context checker */
     if (pmt_use_cust_cxt)
     {
-        search_result = search_stat(cust_cxt, "dir");
+        search_result = get_stat(cust_cxt, "dir");
 
         if (search_result == 1)
-        {
-            if (!pmt_silent) error(1, "%s `%s': %s", current->cannot_stat, cust_cxt, strerror(errno));
-            else return 1;
-        }
+            LOGE("%s `%s': %s\n", current->cannot_stat, cust_cxt, strerror(errno));
         else if (search_result == -1)
-        {
-            if (!pmt_silent) error(1, "`%s': %s", cust_cxt, current->not_dir);
-            else return 1;
-        }
+            LOGE("`%s': %s\n", cust_cxt, current->not_dir);
 
-        if (strstr(cust_cxt, "/dev") == NULL && !pmt_force_mode) error(1, "%s", current->not_in_dev);
+        if (strstr(cust_cxt, "/dev") == NULL && !pmt_force_mode)
+            LOGE("%s\n", current->not_in_dev);
     }
 
     if (target_partition == NULL)
     {
         if (!pmt_force_mode)
-        {
-            if (!pmt_silent) error(1, "%s\n%s `%s --help' %s", current->req_part_name, current->try_h, argv[0], current->for_more);
-        }
-        else return 1;
+            LOGE("%s\n%s `%s --help' %s\n", current->req_part_name, current->try_h, argv[0], current->for_more);
     }
     else
     {
@@ -430,10 +412,14 @@ int main(int argc, char* argv[])
          * 
          * 3 = format
          */
-        if (pmt_backup) return pmt(1);
-        else if (pmt_flash) return pmt(2);
-        else if (pmt_format) return pmt(3);
-        else if (!pmt_silent) error(1, "%s\n%s `%s --help' %s", current->no_target, current->try_h, argv[0], current->for_more);
+        if (pmt_backup)
+            return pmt(1);
+        else if (pmt_flash)
+            return pmt(2);
+        else if (pmt_format)
+            return pmt(3);
+        else
+            LOGE("%s\n%s `%s --help' %s\n", current->no_target, current->try_h, argv[0], current->for_more);
     }
 }
 
diff --git a/jni/root.c b/jni/root.c
index 15c5454..aa639e6 100755
--- a/jni/root.c
+++ b/jni/root.c
@@ -34,10 +34,7 @@ void check_root(void)
 {
     /* a quick, easy method for verifying root */
     if (getuid() != 0)
-    {
-        if (!pmt_force_mode) error(1, "%s", current->no_root);
-        else exit(1);
-    }
+        LOGE("%s\n", current->no_root);
 }
 
 #if defined(__cplusplus)
diff --git a/jni/tools.c b/jni/tools.c
index 8114074..699fd77 100755
--- a/jni/tools.c
+++ b/jni/tools.c
@@ -34,6 +34,7 @@ extern char* cust_cxt;
 extern char* target_partition;
 extern char* target_flash_file;
 extern char* partition_type;
+extern char* bin_name;
 extern bool pmt_use_logical;
 extern bool pmt_use_cust_cxt;
 extern bool pmt_logical;
@@ -55,13 +56,16 @@ calc_flsz(const char* _Nonnull filepath)
 {
     static int calc_flsz_file;
     calc_flsz_file = open(filepath, O_RDONLY);
-    if (calc_flsz_file == -1) return calc_flsz_file;
+
+    if (calc_flsz_file == -1)
+        return calc_flsz_file;
 
     static off_t flsz;
     flsz = lseek(calc_flsz_file, 0, SEEK_END);
     close(calc_flsz_file);
 
-    if (flsz == (off_t)-1) return -1;
+    if (flsz == (off_t)-1)
+        return -1;
 
     return (double)flsz / (1024 * 1024);
 }
@@ -70,12 +74,8 @@ calc_flsz(const char* _Nonnull filepath)
  * error that the partition is not found. 
  * It's for quick action.
  */
-static int
-partition_not_found(void)
-{
-    if (!pmt_silent) error(1, "%s", current->part_not_found);
-    else return 1;
-}
+static void
+partition_not_found(void) { LOGE("%s\n", current->part_not_found); }
 
 /* to stop use of function type */
 #define partition_not_found partition_not_found()
@@ -88,31 +88,40 @@ partition_not_found(void)
  * If the desired type is not in -1 value is returned.
  */
 static int
-search_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
+get_stat(const char* _Nonnull filepath, const char* _Nonnull stype)
 {
-    struct stat search_stat;
+    struct stat get_stat;
 
-    if (stat(filepath, &search_stat) != 0) return 1;
+    if (stat(filepath, &get_stat) != 0)
+        return 1;
 
     if (strcmp(stype, "dir") == 0) 
     {
-        if (S_ISDIR(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISDIR(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "file") == 0)
     {
-        if (S_ISREG(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISREG(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "blk") == 0)
     {
-        if (S_ISBLK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISBLK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
     else if (strcmp(stype, "link") == 0)
     {
-        if (S_ISLNK(search_stat.st_mode)) return 0;
-        else return -1;
+        if (S_ISLNK(get_stat.st_mode))
+            return 0;
+        else
+            return -1;
     }
 
     return 2;
@@ -123,11 +132,12 @@ static void
 search_partition(const char* _Nonnull partition)
 {
     static int partition_results = 0;
-    partition_results = search_stat(partition, "blk");
+    partition_results = get_stat(partition, "blk");
 
-    if (partition_results == 1) partition_not_found;
-    else if (partition_results == -1 && !pmt_silent) error(1, "%s", current->not_block);
-    else exit(1);
+    if (partition_results == 1)
+        partition_not_found;
+    else if (partition_results == -1)
+        LOGE("%s\n", current->not_block);
 }
 
 int pmt(unsigned short progress_code)
@@ -148,37 +158,37 @@ int pmt(unsigned short progress_code)
     {
         if (!pmt_use_logical)
         {
-            if (pmt_use_cust_cxt) sprintf(backupper_path, "%s/%s", cust_cxt, target_partition);
-            else sprintf(backupper_path, "/dev/block/by-name/%s", target_partition);
+            if (pmt_use_cust_cxt)
+                sprintf(backupper_path, "%s/%s", cust_cxt, target_partition);
+            else
+                sprintf(backupper_path, "/dev/block/by-name/%s", target_partition);
         }
-        else if (pmt_use_logical) sprintf(backupper_path, "/dev/block/mapper/%s", target_partition);
+        else
+            sprintf(backupper_path, "/dev/block/mapper/%s", target_partition);
 
         search_partition(backupper_path);
 
-        if (calc_flsz(backupper_path) != -1 && !pmt_silent) printf("%s: %.2f\n", current->part_disk_sz, calc_flsz(backupper_path));
-        else if (!pmt_silent) warning("%s", current->part_disk_sz_fail);
+        if (calc_flsz(backupper_path) != -1)
+            LOGD("%s: %.2f\n", current->part_disk_sz, calc_flsz(backupper_path));
+        else
+            LOGW("%s\n", current->part_disk_sz_fail);
 
         srcf = open(backupper_path, O_RDONLY);
         if (srcf == -1)
-        {
-            if (!pmt_silent) error(1, "%s: %s: %s", current->not_read, backupper_path, strerror(errno));
-            else return 1;
-        }
+            LOGE("%s: %s: %s\n", current->not_read, backupper_path, strerror(errno));
 
         /* determine output */
         if (strcmp(out, target_partition) == 0)
         {
             sprintf(outf, "%s.img", target_partition);
-            if (!pmt_silent) warning("%s: %s", current->out_not_spec, outf);
+            LOGW("%s: %s\n", current->out_not_spec, outf);
         }
-        else sprintf(outf, "%s", target_partition);
+        else
+            sprintf(outf, "%s", target_partition);
 
         targetf = open(outf, O_WRONLY | O_CREAT | O_TRUNC, 0666);
         if (targetf == -1)
-        {
-            if (!pmt_silent) error(1, "%s: %s: %s", current->not_gen, outf, strerror(errno));
-            else return 1;
-        }
+            LOGE("%s: %s: %s\n", current->not_gen, outf, strerror(errno));
 
         /* start writing */
         while ((readed_data = read(srcf, buffer, BFSIZE)) > 0 && copied_data < count)
@@ -186,11 +196,9 @@ int pmt(unsigned short progress_code)
             ssize_t writed_data = write(targetf, buffer, readed_data);
             if (writed_data != readed_data)
             {
-                if (!pmt_silent) warning("%s: %s: %s", current->not_write, backupper_path, strerror(errno));
-                close(srcf);
-                close(targetf);
-                if (search_stat(outf, "file") == 0) remove(outf);
-                return 1;
+                if (get_stat(outf, "file") == 0)
+                    remove(outf);
+                LOGF("%s: %s: %s\n", current->not_write, backupper_path, strerror(errno));
             }
 
             copied_data += writed_data;
@@ -200,7 +208,7 @@ int pmt(unsigned short progress_code)
         close(srcf);
         close(targetf);
 
-        if (!pmt_silent) printf("%s: %s\n", current->success_backup, outf);
+        LOGD("%s: %s\n", current->success_backup, outf);
     }
     else if (progress_code == 2)
     {
@@ -208,49 +216,45 @@ int pmt(unsigned short progress_code)
         /* for classic */
         if (!pmt_use_logical)
         {
-            if (pmt_use_cust_cxt) sprintf(flasher_path, "%s/%s", cust_cxt, target_partition);
-            else sprintf(flasher_path, "/dev/block/by-name/%s", target_partition);
+            if (pmt_use_cust_cxt)
+                sprintf(flasher_path, "%s/%s", cust_cxt, target_partition);
+            else
+                sprintf(flasher_path, "/dev/block/by-name/%s", target_partition);
         /* for logical */
         }
-        else if (pmt_use_logical) sprintf(flasher_path, "/dev/block/mapper/%s", target_partition);
+        else
+            sprintf(flasher_path, "/dev/block/mapper/%s", target_partition);
 
         /* check partition */
         search_partition(flasher_path);
 
-        if (calc_flsz(target_flash_file) != -1 && !pmt_force_mode) printf("%s: %.2f\n", current->flash_file_sz, calc_flsz(target_flash_file));
-        else warning("%s", current->flash_file_sz_fail);
+        if (calc_flsz(target_flash_file) != -1)
+            LOGD("%s: %.2f\n", current->flash_file_sz, calc_flsz(target_flash_file));
+        else
+            LOGW("%s\n", current->flash_file_sz_fail);
 
-        if (calc_flsz(target_partition) != -1 && !pmt_force_mode) printf("%s: %.2f\n", current->part_disk_sz, calc_flsz(target_partition));
-        else warning("%s", current->part_disk_sz_fail);
+        if (calc_flsz(target_partition) != -1)
+            LOGD("%s: %.2f\n", current->part_disk_sz, calc_flsz(target_partition));
+        else
+            LOGW("%s\n", current->part_disk_sz_fail);
 
-        if (calc_flsz(target_flash_file) > calc_flsz(target_partition) && !pmt_silent) error(1, "%s", current->ffile_more_part);
-        else return 1;
+        if (calc_flsz(target_flash_file) > calc_flsz(target_partition))
+            LOGE("%s\n", current->ffile_more_part);
 
         srcf = open(target_flash_file, O_RDONLY);
         if (srcf == -1)
-        {
-            if (!pmt_force_mode) error(1, "%s: %s: %s", current->not_read, target_flash_file, strerror(errno));
-            else return 1;
-        }
+            LOGF("%s: %s: %s\n", current->not_read, target_flash_file, strerror(errno));
 
         targetf = open(target_partition, O_WRONLY | O_CREAT | O_TRUNC, 0666);
         if (targetf == -1)
-        {
-            if (!pmt_force_mode) error(1, "%s: %s: %s", current->not_read, target_partition, strerror(errno));
-            else return 1;
-        }
+            LOGF("%s: %s: %s\n", current->not_read, target_partition, strerror(errno));
 
         /* start writing */
         while ((readed_data = read(srcf, buffer, BFSIZE)) > 0 && copied_data < count)
         {
             ssize_t writed_data = write(targetf, buffer, readed_data);
             if (writed_data != readed_data)
-            {
-                warning("%s: %s: %s", current->not_write, backupper_path, strerror(errno));
-                close(srcf);
-                close(targetf);
-                return 1;
-            }
+                LOGF("%s: %s: %s\n", current->not_write, backupper_path, strerror(errno));
 
             copied_data += writed_data;
         }
@@ -258,18 +262,21 @@ int pmt(unsigned short progress_code)
         close(srcf);
         close(targetf);
 
-        if (!pmt_force_mode) printf("%s.\n", current->success_flash);
+        LOGD("%s.\n", current->success_flash);
     }
     else if (progress_code == 3)
     {
         /* generate partition extn */
         if (!pmt_use_logical)
         {
-            if (pmt_use_cust_cxt) sprintf(ppath, "%s/%s", cust_cxt, target_partition);
-            else sprintf(ppath, "/dev/block/by-name/%s", target_partition);
+            if (pmt_use_cust_cxt)
+                sprintf(ppath, "%s/%s", cust_cxt, target_partition);
+            else
+                sprintf(ppath, "/dev/block/by-name/%s", target_partition);
         /* for logical */
         }
-        else if (pmt_use_logical) sprintf(ppath, "/dev/block/mapper/%s", target_partition);
+        else
+            sprintf(ppath, "/dev/block/mapper/%s", target_partition);
 
         /* check partition */
         search_partition(ppath);
@@ -277,20 +284,14 @@ int pmt(unsigned short progress_code)
         /* get target partition block size */
         struct statvfs file_sys_inf;
         if (statvfs(ppath, &file_sys_inf) != 0)
-        {
-            if (!pmt_force_mode) error(1, "%s", current->cannot_get_bsz);
-            else return 1;
-        }
+            LOGE("%s\n", current->cannot_get_bsz);
 
         /* generate mke2fs command */
         sprintf(formatter_cmd, "mke2fs -Fq -t %s -b %lu %s", format_fs, file_sys_inf.f_bsize, ppath);
 
         /* run command */
         if (system(formatter_cmd) != 0)
-        {
-            if (!pmt_force_mode) error(1, "%s", current->format_fail);
-            else return 1;
-        }
+            LOGF("%s\n", current->format_fail);
     }
 
     return 0;
diff --git a/jni/versioner.c b/jni/versioner.c
index 909c496..206b5a9 100755
--- a/jni/versioner.c
+++ b/jni/versioner.c
@@ -33,21 +33,21 @@ extern struct pmt_langdb_general tr;
 
 void version(void)
 {
-    printf("%s %s %d.%d.%d (%d%d%d) ", bin_name, current->version_str, PMT_MAJOR, PMT_MINOR, PMT_PATCHLEVEL, PMT_MAJOR, PMT_MINOR, PMT_PATCHLEVEL);
+    LOGD("%s %s %d.%d.%d (%d%d%d) ", bin_name, current->version_str, PMT_MAJOR, PMT_MINOR, PMT_PATCHLEVEL, PMT_MAJOR, PMT_MINOR, PMT_PATCHLEVEL);
 
     #if __SIZEOF_POINTER__ == 4
-        printf("32-bit %s\n", current->bin_str);
+        LOGD("32-bit %s\n", current->bin_str);
     #elif __SIZEOF_POINTER__ == 8
-        printf("64-bit %s\n", current->bin_str);
+        LOGD("64-bit %s\n", current->bin_str);
     #else
-        printf("<%s> %s\n", current->unknw_str, current->bin_str);
+        LOGD("<%s> %s\n", current->unknw_str, current->bin_str);
     #endif
 
     #if defined(__clang__)
-        printf("%s: clang %d.%d.%d (NDK r%d%s %s)\n", current->compiler_str, __clang_major__, __clang_minor__, __clang_patchlevel__, __NDK_MAJOR__, __NDK_MINOR_STATUS__, __NDK_BETA_STATUS__);
+        LOGD("%s: clang %d.%d.%d (NDK r%d%s %s)\n", current->compiler_str, __clang_major__, __clang_minor__, __clang_patchlevel__, __NDK_MAJOR__, __NDK_MINOR_STATUS__, __NDK_BETA_STATUS__);
     #endif
 
-    printf("%s\n", current->see_license);
+    LOGD("%s\n", current->see_license);
 }
 
 #if defined(__cplusplus)
diff --git a/utils.sh b/utils.sh
index 26c642a..39869ca 100755
--- a/utils.sh
+++ b/utils.sh
@@ -20,7 +20,7 @@ RED='\e[31m'
 NC='\e[0m'
 
 # needed variables
-VERSION="2.3.0"
+VERSION="2.4.0"
 CUR_DIR=$(pwd)
 LIB_DIR=${CUR_DIR}/libs
 ARMV8A_DIR=${LIB_DIR}/arm64-v8a