on the T470. The BIOS setup will open with no password prompt .
The verified method had worked, and John made sure to document it for future reference. He also shared the solution with Lenovo's support team, so they could assist other users who might encounter the same issue. lenovo t470 bios password reset verified
The patched file is written back to the chip. After a specific boot sequence (often involving a temporary password like "1234"), the original (unpatched) file is reflashed to restore full functionality without the lock. on the T470
Locate the small coin-cell battery (usually wrapped in yellow or black plastic) and unplug it from the motherboard. lenovo t470 bios password reset verified