Bios thinkpad yoga 260

[shika]

Hello

I com back again for asking if someone can confirm than if i change the ship with that one: https://m.ebay.co.uk/itm/BIOS-CHIP-LENOV...r=1&_rdt=1
It can be ok ?

Thank you

[wfko]

Hello all,
On eBay I bought a motherboard for my Thinkpad Yoga 260 (the old one died), but it turned out to be locked. I tried the trick with shorting pins 5 and 6 of the Winbond BIOS eeprom, but I never got it to work. I then reflashed the BIOS chip with the old, original image and with one I bought on the I'net. No luck. Tried shorting pins again, but it didn't work.
Now when booting, on screen I only get two small icons next to a lock icon plus 2 error messages:
    0271: real time clock error
    0183: Bad CRC of security settings in EFI variable.
I'm out of options. Does anyone have an idea?