If you'd like to try the , I can help you identify the tools and software needed, or I can help you find the official hardware maintenance manual for the T470 to locate the chip. Which would you prefer?
This method involves using a hardware programmer (like the ) to physically read and rewrite the BIOS chip.
If you prefer not to open your laptop, specialized software tools can read or patch the BIOS dump. However, because modern ThinkPads encrypt the password within the Embedded Controller (EC) or EEPROM, standard online script generators rarely work for the T470 generation. Using Hardware Programmers (CH341A) lenovo t470 bios password reset verified
A BIOS password, also known as a UEFI firmware password, is a security feature that protects your computer's basic input/output system (BIOS) from unauthorized access. It prevents others from changing your computer's settings or booting from a different device. A BIOS password is usually set in the BIOS settings and can be a simple text password or a more complex combination of characters.
: On a T470, the EEPROM chip (often a Winbond variant) is typically found near the RAM or under a protective plastic flap. The "Reading" Phase If you'd like to try the , I
Flash the newly patched binary file back onto the T470 chip using the programmer.
No. The T470 stores the supervisor password in non-volatile memory that persists even when all batteries are removed. Removing the CMOS battery may reset the system clock and some basic settings, but it will not clear the password. If you prefer not to open your laptop,
Are you struggling with a forgotten BIOS password on your Lenovo T470 laptop? Don't worry, you're not alone. Forgetting a BIOS password can be frustrating, especially if you need to access your computer urgently. Fortunately, resetting the BIOS password on a Lenovo T470 is a relatively straightforward process. In this article, we will walk you through a verified method to reset the BIOS password on your Lenovo T470.
file, injecting an EFI module that temporarily bypasses the password verification. The "Unlock" Boot The "patched" file is written back to the chip.
Resetting the BIOS password on a Lenovo ThinkPad T470 is far from trivial, but it is also not impossible. While Lenovo officially maintains that there is no service procedure to reset a forgotten supervisor password, the repair community has developed and verified multiple working approaches. The CH341A programmer combined with the Lenovo BIOS Auto-Patcher stands out as the most reliable method, with numerous success reports from T470 owners who followed the process correctly.
One user on Badcaps reported success with the following approach: reading the original locked BIOS chip, applying the auto-patcher to a 2018 BIOS dump (as the patcher did not work on the newest BIOS revision v1.79 from late 2024), writing the patched version to the chip, booting the machine, and then rewriting the original BIOS back to factory defaults. After completing these steps, the supervisor password was successfully removed.