diff --git a/demo/os/rt-thread/stm32f10x/components/easyflash/inc/easyflash.h b/demo/os/rt-thread/stm32f10x/components/easyflash/inc/easyflash.h
index 0daedcb..dff426f 100644
--- a/demo/os/rt-thread/stm32f10x/components/easyflash/inc/easyflash.h
+++ b/demo/os/rt-thread/stm32f10x/components/easyflash/inc/easyflash.h
@@ -67,7 +67,7 @@ if (!(EXPR))                                                                  \
     while (1);                                                                \
 }
 /* EasyFlash software version number */
-#define EF_SW_VERSION                "1.09.12"
+#define EF_SW_VERSION                "1.09.16"
 
 typedef struct _eflash_env{
     char *key;
diff --git a/demo/os/rt-thread/stm32f10x/components/easyflash/src/ef_log.c b/demo/os/rt-thread/stm32f10x/components/easyflash/src/ef_log.c
index 187df82..088af3f 100644
--- a/demo/os/rt-thread/stm32f10x/components/easyflash/src/ef_log.c
+++ b/demo/os/rt-thread/stm32f10x/components/easyflash/src/ef_log.c
@@ -173,7 +173,12 @@ static void find_start_and_end_addr(void) {
                     log_start_addr = log_area_start_addr;
                     cur_using_sec_addr = log_area_start_addr + cur_size;
                 } else {
-                    /* state 1 or 2*/
+                    /* like state 2 when the sector is the last one */
+                    if (cur_size + EF_ERASE_MIN_SIZE >= LOG_AREA_SIZE) {
+                        cur_log_sec_state = 2;
+                        log_start_addr = log_area_start_addr + cur_size;
+                        cur_using_sec_addr = log_area_start_addr + cur_size - EF_ERASE_MIN_SIZE;
+                    }
                 }
                 break;
             case FLASH_SECTOR_FULL: