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Fanfold Paper
Posts: 10
Registered: ‎08-24-2019
Location: US
Views: 165
Message 1 of 3

X1 Yoga Gen 2 - BIOS chip failure?

Does anyone have information on the X1 Yoga Gen 2 BIOS chip?


I bought a replacement motherboard off ebay as believed mine to have crapped out. Was BIOS locked, and seller explained how to reset the BIOS by shorting SDA and SCL...


... now the motherboard is demonstrating the same characteristics as my first one I deemed bad 


lights work (power, thinkpad on lid, charge, etc)

fan turns on for a few seconds when boot

no screen, no screen output


would replaceing the BIOS chip solve the issue?

Community SeniorMod
Community SeniorMod
Posts: 10,054
Registered: ‎01-01-2010
Location: US
Views: 148
Message 2 of 3

Re: X1 Yoga Gen 2 - BIOS chip failure?

There is no way to reset the password by shorting any leads.  The password isn't stored in the BIOS chip anyway.  If you short anything, all you might do is ruin the board so it wouldn't work even if you knew the password.  


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
Community SuperMod
Community SuperMod
Posts: 5,523
Registered: ‎06-26-2008
Location: US
Views: 92
Message 3 of 3

Re: X1 Yoga Gen 2 - BIOS chip failure?

Discussion regarding circumventing/hacking security features is disallowed.

Thread locked.

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PM requests for individual support are not answered. If a post solves your issue, please mark it so.

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