Hey ! sory for the long period without update, was in Holiday.
I Want to thank you, your bios worked like a charm ! my laptop revived you are the best <3...

Hey, Oups my bad here he is : PF2JYVLN

Hi everyone ! I buy recently a Y540-15IRH 81sx for gaming, was perfectly fine for month, then i updated everything with Vantage and they apparently updated the bios. Unfortunatly, after restart, i can't get any post on display, it's black, no backlight.
The keyboard light up for 5 sec with fan at low speed, then stop, after 60 sec the laptop turn fan to max speed, i can heard a this time the windows boot intro sound, then it shut down after 10 sec.
I already tryed to reflash the bios via a CH341a with almost all bios i found of this model on the forum, but no sign of life...
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Hey everyone ! I'm Gwen from France, i'm an old Apple technician and on my extra time i repair every type of laptop and pc, so i might need your help or i can also help you in any way see you soon

Thank you for your help sory for the SN missing :/
I flashed your bios, the laptop's fans spin 3 time then shut down.
And now everytime i press the power on, only the keyboard light up, no fan spin, nothing else.
I think somthing is toasted. Ty for your help anyway ...