Once you reset the password, the T470 will auto-generate a new unique hash if you set a password again. To avoid future lockouts:
This guide explores verified methods for resetting a T470 BIOS password, ranging from official Lenovo procedures to advanced hardware patching. 1. The Official Route: Motherboard Replacement lenovo t470 bios password reset verified
For users willing to attempt complex hardware-level modifications, the following advanced methods have been used, though they carry a high risk of "bricking" the device: Once you reset the password, the T470 will
(near the RAM slot on the T470 motherboard): : Lenovo Support cannot reset a Supervisor Password
While some generic guides suggest removing the CMOS battery to reset BIOS, this only clears the date, time, and basic settings—it will not clear the Supervisor Password on a T470. Verified Advanced (Unofficial) Methods
Open the t470_locked.bin in a hex editor (HxD). You need to clear the password hash.
: Lenovo Support cannot reset a Supervisor Password. Their only official solution is a complete motherboard replacement