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Location of BIOS/CMOS security chip on Thinkpad T470?
(lemmy.world)
For questions about component-level electronic circuits, tools and equipment.
1: Be nice.
2: Be on-topic (eg: Electronic, not electrical).
3: No commercial stuff, buying, selling or valuations.
4: Be safe.
Remove the CMOS battery, the password should reset, then you can get in the BIOS.
No, this doesn't work for ThinkPads. The password persists even without power.
https://www.cocosenor.com/articles/computer/3-ways-to-unlock-bios-password-on-lenovo-thinkpad-laptop.html
One of these should work.