Before opening your laptop, try this: Sometimes the T470 locks the BIOS based on hardware hashing. Power on without RAM. If it prompts for a password, this won't help. But on 1% of units, removing the storage forces a default state. (It’s free, so try it.)
Resetting a Lenovo ThinkPad T470 BIOS supervisor password is a technical process that involves specialized hardware, as modern ThinkPads store these passwords on a non-volatile EEPROM chip that survives CMOS battery removal The "Verified" Hardware Reset Story This method, often cited by enthusiasts on platforms like lenovo t470 bios password reset verified
After spending 6 hours testing every method online (and bricking one motherboard in the process), here is the to reset the BIOS password on a Lenovo T470. Before opening your laptop, try this: Sometimes the
(available on community forums like GitHub). The Procedure But on 1% of units, removing the storage