diff --git a/easylogger/inc/elog.h b/easylogger/inc/elog.h
index 85801f0..fd81886 100644
--- a/easylogger/inc/elog.h
+++ b/easylogger/inc/elog.h
@@ -50,7 +50,7 @@ extern "C" {
 #define ELOG_LVL_TOTAL_NUM                   6
 
 /* EasyLogger software version number */
-#define ELOG_SW_VERSION                      "1.11.25"
+#define ELOG_SW_VERSION                      "1.12.19"
 
 /* EasyLogger assert for developer. */
 #ifdef ELOG_ASSERT_ENABLE
@@ -206,6 +206,7 @@ size_t elog_async_get_line_log(char *log, size_t size);
 /* elog_utils.c */
 size_t elog_strcpy(size_t cur_len, char *dst, const char *src);
 size_t elog_cpyln(char *line, const char *log, size_t len);
+void *elog_memcpy(void *dst, const void *src, size_t count);
 
 #ifdef __cplusplus
 }
diff --git a/easylogger/plugins/flash/elog_flash.c b/easylogger/plugins/flash/elog_flash.c
index caf61cf..a75bda1 100644
--- a/easylogger/plugins/flash/elog_flash.c
+++ b/easylogger/plugins/flash/elog_flash.c
@@ -179,7 +179,7 @@ void elog_flash_write(const char *log, size_t size) {
     while (true) {
         if (cur_buf_size + size > ELOG_FLASH_BUF_SIZE) {
             write_size = ELOG_FLASH_BUF_SIZE - cur_buf_size;
-            memcpy(log_buf + cur_buf_size, log + write_index, write_size);
+            elog_memcpy(log_buf + cur_buf_size, log + write_index, write_size);
             write_index += write_size;
             size -= write_size;
             cur_buf_size += write_size;
@@ -190,7 +190,7 @@ void elog_flash_write(const char *log, size_t size) {
             /* lock flash log buffer */
             log_buf_lock();
         } else {
-            memcpy(log_buf + cur_buf_size, log + write_index, size);
+            elog_memcpy(log_buf + cur_buf_size, log + write_index, size);
             cur_buf_size += size;
             break;
         }
@@ -202,7 +202,7 @@ void elog_flash_write(const char *log, size_t size) {
     result = ef_log_write((uint32_t *) log, write_size_temp);
     /* write last word alignment data */
     if ((result == EF_NO_ERR) && (write_size_temp != size)) {
-        memcpy(write_overage_c, log + write_size_temp, size - write_size_temp);
+        elog_memcpy(write_overage_c, log + write_size_temp, size - write_size_temp);
         ef_log_write((uint32_t *) write_overage_c, 4);
     }
 #endif
diff --git a/easylogger/plugins/flash/elog_flash.h b/easylogger/plugins/flash/elog_flash.h
index 60f2c46..5300b22 100644
--- a/easylogger/plugins/flash/elog_flash.h
+++ b/easylogger/plugins/flash/elog_flash.h
@@ -41,7 +41,7 @@ extern "C" {
 #endif
 
 /* EasyLogger flash log plugin's software version number */
-#define ELOG_FLASH_SW_VERSION                "1.10.11"
+#define ELOG_FLASH_SW_VERSION                "1.12.19"
 
 /* elog_flash.c */
 ElogErrCode elog_flash_init(void);
diff --git a/easylogger/src/elog_utils.c b/easylogger/src/elog_utils.c
index c4f9754..3817d7e 100644
--- a/easylogger/src/elog_utils.c
+++ b/easylogger/src/elog_utils.c
@@ -80,8 +80,8 @@ size_t elog_strcpy(size_t cur_len, char *dst, const char *src) {
 size_t elog_cpyln(char *line, const char *log, size_t len) {
     size_t newline_len = strlen(ELOG_NEWLINE_SIGN), copy_size = 0;
 
-    assert(log);
     assert(line);
+    assert(log);
 
     while (len--) {
         *line++ = *log++;
@@ -92,3 +92,25 @@ size_t elog_cpyln(char *line, const char *log, size_t len) {
     }
     return copy_size;
 }
+
+/**
+ * This function will copy memory content from source address to destination
+ * address.
+ *
+ * @param dst the address of destination memory
+ * @param src  the address of source memory
+ * @param count the copied length
+ *
+ * @return the address of destination memory
+ */
+void *elog_memcpy(void *dst, const void *src, size_t count) {
+    char *tmp = (char *) dst, *s = (char *) src;
+
+    assert(dst);
+    assert(src);
+
+    while (count--)
+        *tmp++ = *s++;
+
+    return dst;
+}