With ST-link CLI: (it worked fine, just for comparison purpose)
@echo off
SET COMMAND=st-link_cli -c SWD FREQ=4000 UR
SET FILE=%1%
echo.
echo %FILE%
echo ===================================================================
echo SURE TO ERASE-PROGRAM-VERIFY? Press Ctrl+C to cancel
echo ===================================================================
echo.
pause
%COMMAND% -OB RDP=0 WPRMOD=0 WRP=0 -ME -P %FILE% -V
echo return value is %errorlevel%
if %errorlevel%== 0 echo Command executed successfully.
if %errorlevel%== 1 echo Command arguments error.
if %errorlevel%== 2 echo Connection problem.
if %errorlevel%== 3 echo Command not available for the connected target.
if %errorlevel%== 4 echo Error occurred while writing data to the specified memory address.
if %errorlevel%== 5 echo Cannot read memory from the specified memory address.
if %errorlevel%== 6 echo Cannot reset MCU.
if %errorlevel%== 7 echo Failed to run application.
if %errorlevel%== 8 echo Failed to halt the core.
if %errorlevel%== 9 echo Failed to perform a single instruction step.
if %errorlevel%== 10 echo Failed to set/clear a breakpoint.
if %errorlevel%== 11 echo Unable to erase one or more Flash memory sectors.
if %errorlevel%== 12 echo Flash memory programming/verification error.
if %errorlevel%== 13 echo Option bytes programming error.
if %errorlevel%== 14 echo Memory loader fails (internal Flash memory or external memory)
echo.
pause
