RB metal 2SHPn force upgrade from 6.12 to 6.31 blocked

Hi everyone,
I have a blocked 2SHPn that I cant upgrade to last version.
I have followed the tutorial to upgrade and when i reboot it doesn’t upgrade automatically.

the new version of routeros is on the root directory.
the log dont show me any errors.

Is there an advanced log system or force update command ?

Hi again,
I finally solve this by removing all the others files in the directory.