Some users report success by momentarily shorting specific pins on the EEPROM chip during boot to bypass the password check:
The most reliable way to reset a T470 BIOS password without replacing the motherboard is using a hardware programmer (like the ). The Process: Clip a BIOS programmer to the chip. Read the current BIOS dump to a secondary computer.
Below is the verified reality of how to handle a BIOS lockout on this specific model. ⚠️ The Reality Check: Security vs. Convenience
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: lenovo t470 bios password reset verified
The only officially supported fix for a locked Lenovo ThinkPad T470 BIOS is a motherboard replacement or providing proof of purchase to Lenovo. If you are comfortable with advanced electronics, utilizing a CH341A hardware programmer to patch the EEPROM firmware is the only community-verified DIY method that successfully removes the Supervisor Password.
This guide explores the verified methods for resetting or bypassing the BIOS password on a Lenovo T470, ranging from official channels to hardware-level solutions. Understanding Lenovo ThinkPad Password Types
Method 1: The EEPROM Hardware Patching Method (Highly Technical) Some users report success by momentarily shorting specific
The methods listed here are for the ThinkPad T470 . Earlier ThinkPads (pre-2015) may be easier to reset, while newer models (T480+) may have more stringent protections.
No risk of bricking, official and verified. Cons: Requires proof of ownership; they will not unlock a stolen or third-party purchased laptop. Summary of Verified Methods Reliability Difficulty CMOS Reset Very Low (Doesn't clear SVP) "Lenovo Loop" Medium (Depends on BIOS) CH341A Hardware High (100% Verified) Hard (Hardware) Lenovo Support High (If owner)
If the T470 only has a (user password) and no Supervisor password: Below is the verified reality of how to
Use arrow keys to go to the Security tab, then select Password . Change/Remove: Select Supervisor Password .
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If you followed this guide precisely and still face issues, the T470 may have a blown by a corporate IT policy (Absolute Persistence Module locked at the factory). In that rare 0.5% case, only motherboard replacement works. For everyone else, enjoy your unlocked ThinkPad.
Before attempting a reset, identify which password prompt you are seeing. Lenovo laptops utilize three distinct types of hardware passwords:
| Method | Difficulty | Tools Required | Success Rate | Risk Level | |----------------------------|------------|----------------------|--------------|------------| | CMOS Battery Removal | Low | Screwdriver | Very Low | Low | | Hardware ID / Space Bar | Very Low | None | Medium | None | | Lenovo BIOS Auto‑Patcher | High | BIOS programmer, clip| High | Medium | | SCL/SDA Pin Shorting | Medium | Small screwdriver | Medium | High | | EC Flashing | Expert | EC programmer | Very High | Very High |