diff --git a/bootloader_hex/master.bat b/bootloader_hex/master.bat
index 1875e9a..1f1fc1a 100644
--- a/bootloader_hex/master.bat
+++ b/bootloader_hex/master.bat
@@ -56,7 +56,9 @@ REM ======================================================================
 echo %YELLOW%Starting flash...%RESET%
 echo.
 
-"%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erase -upload "%HEX_FILE%"
+"%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erasemode full -erase -upload "%HEX_FILE%"
+
+REM "%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erase -upload "%HEX_FILE%"
 set "ERR=%ERRORLEVEL%"
 
 echo.
diff --git a/bootloader_hex/slave.bat b/bootloader_hex/slave.bat
index c30e871..fc052a0 100644
--- a/bootloader_hex/slave.bat
+++ b/bootloader_hex/slave.bat
@@ -56,7 +56,9 @@ REM ======================================================================
 echo %YELLOW%Starting flash...%RESET%
 echo.
 
-"%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erase -upload "%HEX_FILE%"
+"%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erasemode full -erase -upload "%HEX_FILE%"
+
+REM "%FLASH_TOOL%" -sn %SERIAL% -tif c2 -erase -upload "%HEX_FILE%"
 set "ERR=%ERRORLEVEL%"
 
 echo.