Lenovo T470 BIOS Password Reset: Verified and Proven Methods (2026 Guide)
The user must read the BIOS chip’s hex data, apply a "patch" to the dump file to disable the password check, flash it back to the chip, boot the laptop to clear the security settings, and then re-flash the original dump.
Hook up the programmer to a secondary computer, clamp the clip onto the T470 security/BIOS chip, and use software like Asurada or NeoProgrammer to dump the original .bin firmware file.
This post assumes the user has physical access to the machine and owns it (e.g., a second-hand unit or a forgotten password). It does not cover "master password" generators (which don't work on the T470) or shorting EEPROM pins (outdated method for this model).
This involves using a CH341A USB programmer and a SOIC8 clip to read the BIOS chip directly. Dump: Read the BIOS firmware to a .bin file.
$100–150. Cost of doing it yourself: $15 (CH341A + clip).
The internet is filled with well-intentioned but incorrect advice about clearing BIOS passwords on laptops. Before diving into methods that actually work, it is worth understanding why many common approaches fail on the ThinkPad T470.
This will not remove the password. The password is stored in non-volatile memory.
: On a T470, the EEPROM chip (often a Winbond variant) is typically found near the RAM or under a protective plastic flap. The "Reading" Phase
This typically requires a fee for parts and labor unless covered by specific premium warranty terms. 2. The Hard Reset (Settings Only)
Purchasing a "clean" motherboard (one that has not been password-locked) and installing it. Where to find: eBay or specialized ThinkPad parts dealers.
Websites that ask for your laptop’s serial number or a "system disabled" hash code to generate a master unlock password do not work for modern ThinkPads. These generators only work for older Dell, HP, or ancient Lenovo models. The T470 does not generate a bypass master key. Conclusion and Next Steps
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For the Lenovo ThinkPad T470, a forgotten Supervisor Password