I only swapped the 128Mb bios chip this time and that seemed to have done the trick. Computer is booting with the original serial number. Thank you

Where is the serial number info stored? 128Mb or 64Mb chip? Perhaps, I will try to swap out only 128Mb chip to see if the computer boots again.

Please, correct me if I am wrong, for Yoga 7 16IAH7 notebook, full BIOS file is spread across 2 bios chips. I currently have one of these laptops with a shorted cpu. The replacement motherboard has a blank serial number that comes up as "INVALID" in Windows. I am trying to transfer the serial number from the old motherboard to the new one by swapping bios chips. Based on the boardview and provided photo below, these bios chips are located side by side on the motherboard as UB2 and UB3 (Winbond 64Mb and XMC 128 chips). I swapped both chips and the computer fails to boot by giving me Esc,...

In case anyone needs boardview and schematics for LA-L651P, here they are. I am still having a problem with the CPU fan. I am not getting a PWM signal....

No need to reprogram the TP chip. If the voltage is stuck @ 5V 0A, I would also check both OVP chips. You may get false negative. Probe the caps around each OVP chip. Most of the time it's one of the OVP chips.

I downloaded several bios files from different websites with mixed results. However, none of them work. The only bin file that works is the one I posted but again no ownership date. If someone can help me out and either fill out the ownership date or fix my bin file, that would be great.

Hello, I have this XPS 9710 that refuses to charge due to "The Ownership Date" field being empty in BIOS. Basically, it doesn't even want to recognize the charger until the battery charge percentage drops to 55% or lower. I tried to reflash the BIOS by using a bin file from a different thread but the computer does a repeating pattern: keeps flashing DELL logo, no boot. If I revert to the original BIOS, computer works just fine but not charging.

Could you, please fix the bios file so that either the ownership date is already populated or perhaps I can go into the manufacturing...