I have a Lenovo Y500. I tried to flash the bios a few years ago but something happened and it never came back to life. Today I've tried to revive it. The TL;DR is...
No other "normal" recovery methods worked so...
I purchased an SPI clamp to read and flash the BIOS chip directly (using a Raspberry Pi). Because the bios file provided here and on Lenovo's website is almost 8 MB and the two chips on the motherboard are 4 MB and 2 MB, I had to dig around to try to find some one who had posted their .bin/.rom files for each of those chips. Unfortunately, none of them worked. The system will turn on, and it will even enter into recovery mode using FN+R, but the USB flashes a couple of times, then turns off, then cycles through the few flashes. Maybe I don't have the correct file it's looking for but idk anymore.
If anyone knows specifically what files to put on that USB drive to make that work OR can give me a SPI dump of their BIOS chips, that would be splendid.
Thanks.