I tried 2 dumps: [B]e8cn41ww[/B] and [B]NM-C821 DUMP[/B] obtained from this site but without success. The laptop behaves the same with both.
The only option left was to try a virgin BIOS dump, also downloaded from this site. However, I can't try many dumps, as I can damage the board or chip by successive soldering and unsoldering.


​I tried 2 dumps: [B]e8cn41ww[/B] and [B]NM-C821 DUMP[/B] obtained from this site but without success. The laptop behaves the same with both.
The only option left was to try a virgin BIOS dump, also downloaded from this site. However,

I've done something like this before, but I don't know why the information wasn't read correctly, or that's how the information was, I don't know. Now, the deed is done, I have nothing to do, maybe someone can help me with a suitable dump. I've never had anything like this before, I've previously solved problems with BIOS and firmware on TVs and coffee makers. The programmer I worked with is EZP2019+, in my opinion it's no better than CH341A....

The original dump file is compromised in my opinion. I checked it with a hex editor and most of it is with FF.​...

Hello friends,
Please help me, I need a BIOS for my Ideapad3 15 ADA05 81W1 laptop.
After a win10 update it won't start. The LEDs light up, the fan spins, the keyboard doesn't work and the screen doesn't turn on either.
I couldn't save the original BIOS. I loaded the BIOS posted an this forum by tracker1 but it doesn't work. Please, if you can help me with a working bios.
Motherboard NM-C821 Rev 1.0,
Processor Ryzen 7 3700u
BIOS original E8CN41WW,
SN: PF2C18LH.

Thank you,​

Welcome to all,
I am pensioner, 65 years old. I worked as a ISO9001 systems engineer at a factory in Oradea, Romania. I have been repairing electronics for about 35 years, initially televisions and audio equipment then laptops and computers for about 10 years. I discovered this site 2 years ago while repairing a laptop, where I rewrote the BIOS with success. I consider myself to working with professional repair equipment. My SPI and EEPROM programmers are not the best but they work: CH341A and EZP2019+.

With consideration, Zsolt Becze​

Welcome to all,
I am pensioner, 65 years old. I worked as a ISO9001 systems engineer at a factory in Oradea, Romania. I have been repairing electronics for about 35 years, initially televisions and audio equipment then laptops and computers for about 10 years. I discovered this site 2 years ago while repairing a laptop, where I rewrote the BIOS with success. I consider myself to working with professional repair equipment. My SPI and EEPROM programmers are not the best but they work: CH341A and EZP2019+.

With consideration, Zsolt Becze​