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BIOS Lenovo Yoga Pro 9 161RP8 KYG85 NM-F121

Lenovo Yoga Pro 9 16IRP8 powers on but no display (internal or HDMI). Fan spins and Caps/Num Lock lights stay steady. System appears not to POST.
Please help check/repair the BIOS if it is corrupted.
Thank you.
2mb no have fix, you can try one bios other
 
Yes, the motherboard is NM-F121.

The previous 2MB file was from the W25Q16 chip (GPU). I will remove the motherboard and locate the main BIOS chip on the other side and upload the dump.
same NM-F121 ?
2mb only for GPU

why not attach main bios ????
The board is NM-F121. I checked both sides of the motherboard and only found the W25Q80 (1MB) and W25Q16 (2MB) SPI chips. I could not locate a 16MB/32MB BIOS chip on this board.
 
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