Hello! By the way, thanks for your help. Nothing, none of the options you told me about worked, always a black screen. I was sure it was a BIOS problem because it happened when I was updating, on the first reboot it started updating the BIOS and completed it, rebooted again and verified with 4 or 5 lines all ok, and when it rebooted again it was left with a black screen... but if you tell me that the BIOS that hoaca388 gives me has to work, I don't know what to do anymore... I'm dumping the BIOS with asprogramer-dregmod-v3.17 selecting the W25Q64JW-IQ_1.8V chip (WINBOND) through a CH341A programmer,...

I have dumped the BIOS you sent me with asprogrammer, putting the delete/write/verify option with the result ok, but I still see a black screen, the portal turns on, moves the fan, but still does not give an image, somewhere I am failing but I do not see it......

Lenovo IdeaPad 3 15ADA05
model 81W1
SN PF236DLK
mtm 81W100KHSP

Hello, I've tried to find it by dumping different BIOSes that you provide, reading several posts without success. The laptop stayed with a black screen after updating the BIOS and it remains like that... I would appreciate it if you could help me please....