Hi @TFF :
It has been a while since your post. How did it work out?
I encountered the same situation much like you - misconfiguration of BIOS then had to rebuild the ROM and reflash and mine is a Yoga 7.
I want to confirm whether your CH341A & 1.8v adapter configuration succeeded in reflashing the 74M12JWSIQ chip.
Best Regards,
Nemo
Hi,
I can confirm I flashed it wirh a ch341a and a 1.8v adapter. I booted into a linux liveCD and used the flashrom utility. Worked well.
Hi TFF thank you for your quick reply!
I can clear the chip and reflash my old backup (without changing the NVRAM) sucessfully but can’t if i’m using the rebuilt version; the NeoProgrammer I use on Windows I think is not reliable so it’s very kind of you for your information that you’ve used flashrom (which I found on the GUIDE but thought Windows could do lol) on Linux.
BTW did you encounter any prompts like write-protect register? I got this prompt from NeoProgrammer when successfully flashed with backup but no such prompt when tried to use the rebuilt one (which failed).
Thank you again for your swift reply!