Lenovo T470 Bios Password Reset Verified Jun 2026

If DIY hardware modification is out of your comfort zone, the only manufacturer-sanctioned method to fix a locked T470 BIOS is replacing the motherboard (system board).

Practical recommendation

Open the t470_locked.bin in a hex editor (HxD). You need to clear the password hash. lenovo t470 bios password reset verified

As noted, simply removing the CMOS battery—the standard fix for older computers— because the password is stored in a separate EEPROM chip that retains its contents without power. However, it’s worth a quick attempt for completeness, especially if you’re dealing with a power‑on password.

Lenovo stores the Supervisor Password in a non-volatile EEPROM chip (specifically an or a similar chip embedded within the Embedded Controller/MEC1633). This chip retains data indefinitely without power. Disconnecting the CMOS battery on a T470 will only reset the system clock, which actually triggers a "Date and Time Security Error" on the next boot, permanently locking you out of the OS until the Supervisor Password is entered. If DIY hardware modification is out of your

Lenovo explicitly states there is no official service procedure to reset or remove a forgotten Supervisor Password.

This method requires complete disassembly of the laptop. You risk permanently shorting the motherboard, destroying the integrated circuit, or rendering the laptop a "brick" if you touch the wrong pins or components. Proceed at your own risk. Tools Required Small Phillips screwdriver (for laptop back panel). Non-conductive pry tools. Conductive metal tweezers or a sewing needle. An external monitor (optional, but helpful for visibility). Step-by-Step Procedure As noted, simply removing the CMOS battery—the standard

If shorting fails or feels too risky, the most reliable hardware-level verification method involves reading the chip's data, patching it to remove the password, and rewriting it. Required Tools: A secondary working computer.

: You can purchase a replacement T470 motherboard online or send the unit to a Lenovo Certified Service Center.

On older models, shorting SDA/SCL pins on the EEPROM chip was a common bypass. Experts and community users report this does not work for the T470 because the password is no longer stored in a simple, easily accessible EEPROM.

Place your tweezers firmly across the SDA and SCL pins to bridge them.