i've flashed main and ec but no lucky: the power light keeps blinking 12 times and after turn off it restart every time in an infinite loop.
Also if i reconnect internal battery, the power light go on and after a while it turn off
the last screen before the problem was a lenovo screen with this messages: Warning: Please do not power off while BIOS self recovery processing and when it reached 100% it turned off and never turned on again.
Bios was upgraded by Windows 11 Update....

Hi there,
lenovo v15 g3 iap
sr PF4BK78A
the backup file doesn't work and doesn't restore and now it doesn't power up anymore
it have 2 bios chip
need bios bin

Hi, my name is francesco and i'm a student from italy!