Note: For the T470, the SVP is stored on a non-volatile flash chip (EEPROM/SPI flash), making simple CMOS battery removal ineffective for removing the password. The following solutions assume you are trying to bypass the . Method 1: The "Lenovo Loop" Bypass (Verified)
Place your tweezers firmly across the SDA and SCL pins to bridge them.
Do you see a (like a padlock) or a hexadecimal error code on the screen? lenovo t470 bios password reset verified
The moment the BIOS screen or a partial menu appears, from the pins.
On consumer laptops, pulling the coin-sized CR2032 CMOS battery for a few minutes clears the volatile CMOS memory, resetting the BIOS to factory defaults. On the ThinkPad T470, this does not work. Note: For the T470, the SVP is stored
Verdict: This method is verified to work on T470 BIOS versions 1.25 through 1.55 (2020-2025).
This method requires precise timing and carries a risk of damaging the motherboard if the wrong pins are shorted or if a short is applied at the wrong time. It is generally not recommended for inexperienced users. Do you see a (like a padlock) or
For the Lenovo ThinkPad T470, a forgotten Supervisor Password
Erase the chip via the software, then write the newly patched .bin file back onto the chip.
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.
Open the base cover. Disconnect the internal battery and the coin-cell CMOS battery. Press and hold the power button for 30 seconds to drain residual electricity.
