How do I remove the BIOS password for Lenovo thinkpad T470s?

Hello, I have this specific laptop model where BIOS is locked. I tried to find EEPROM but I found two of them similar types. They are labeled in the board as U15 and U49 . I do not know which one I need to short to disable the BIOS lock. I tried both but it did not work. Am I missing something

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