While older models (like the T430) allowed users to short the SDA/SCL pins on the EEPROM chip, the T470 uses a sophisticated TPM 2.0 architecture that makes this method extremely risky and likely to fry the motherboard. Advanced Technical Recovery (Hardware Flashing)
Disclaimer: This guide is for educational purposes and for resetting passwords on equipment you legally own. Do not use this to bypass security on stolen devices.
Last verified: April 2026. Tested on T470 (20JM, 20JN) with BIOS N1VET58W (1.58). lenovo t470 bios password reset verified
Remove the bottom base cover by loosening the captive screws.
Before you start disassembling your laptop, check the basics. Some users have reported success with simple backdoor passwords provided by service centers. Here is a procedure that has been documented for various Lenovo models: While older models (like the T430) allowed users
The former employee, Alex, had set up a BIOS password to protect the laptop's contents, but he had not shared the password with anyone. The company's IT department had not documented the password, and Alex was no longer reachable. Sarah was stuck and couldn't access the laptop.
Before diving into the reset, you must understand why the T470 isn’t like an old T420. Starting with the Intel 6th Generation (Skylake) and 7th Generation (Kaby Lake) chipsets used in the T470, Lenovo implemented the directly into the Intel Management Engine (ME) region of the SPI flash chip. Last verified: April 2026
(near the RAM slot on the T470 motherboard):
, which is often more expensive than the laptop's current value.
Method 2: Verified Hardware Bypass (The EEPROM Shorting Technique)