Attach the SOIC8 clip to the chip, connect it to the CH341A programmer, and plug it into your secondary PC. Use software to read the chip's firmware. Always make multiple backup copies of this original dump.
If your T470 is simply frozen (not a password issue), use a paperclip in the emergency-reset hole on the bottom of the laptop.
Run the dump through the Lenovo Auto Patcher . This creates a "patched" version of your BIOS that bypasses the password check. Write and Flash: Write the patched file back to the chip. lenovo t470 bios password reset verified
If you plan to perform the repair yourself, ensure you work in a static-free environment and double-check your chip pinouts using a T470 motherboard schematic diagram. If you'd like to attempt the repair yourself, let me know:
Remove the bottom base cover by loosening the captive screws. Attach the SOIC8 clip to the chip, connect
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.
Lenovo T470 BIOS Password Reset: Verified Methods and Expert Guide If your T470 is simply frozen (not a
Locked out of your Lenovo ThinkPad T470 BIOS? Whether you forgot the Supervisor Password (SVP) or bought a used laptop with a locked firmware menu, gaining access is critical. The ThinkPad T470 utilizes robust security features designed to protect corporate data. Consequently, standard tricks like removing the CMOS battery will not work.
Protects the data on your storage drive.
Passwords reside on a non-volatile EEPROM chip.
If the Pico method fails (rare, but happens on v1.52+ BIOS), you’ll need a and SOIC-8 clip . This reads/writes the W25Q64JV SPI flash chip near the CPU.