: There are third-party services that specialize in removing these passwords by having you send the motherboard to them or providing a custom patched BIOS file if you can dump it yourself. Resetting Other Passwords
No. Long answer: Removing the CMOS battery (CR1220) and the main battery for 24 hours will reset the system clock and some settings (like boot order), but it will NOT clear a Power-On or Supervisor password.
Requires a password every time you turn the laptop on. lenovo t470 bios password reset
The most common DIY method for resetting BIOS settings involves cutting power to the CMOS (Complementary Metal-Oxide-Semiconductor) memory. The T470 stores BIOS settings in a small memory chip that requires constant power to retain non-volatile data.
: This involves using a hardware device (like a CH341A programmer) to dump the BIOS image from the chip, patching the image with specialized "autopatcher" software to clear the password, and then reflashing it back to the board. : There are third-party services that specialize in
If you are comfortable with advanced hardware manipulation, community members on forums like Reddit's ThinkPad community have identified the following "paper" or DIY-style workarounds, though they carry a high risk of permanently damaging the device:
Enter the current POP, then leave the "New Password" fields blank and press Enter twice. Press to save and exit. Requires a password every time you turn the laptop on
If you do not have a Supervisor Password, Lenovo recommends contacting an authorized service provider , as they may need to replace the motherboard. 3. Bypassing the Supervisor Password (Advanced)
Restart the computer and press at the Lenovo logo to enter ThinkPad Setup . Enter your Supervisor Password . Go to Security > Password > Power-On Password .