Surface Pro 4 Go to product viewer dialog for this item. BIOS/UEFI Password Reset Guide: Proven High-Quality Methods If you are locked out of your Surface Pro 4
This is the only definitive way to clear the password from the motherboard physically. It requires advanced microsoldering skills and specialized tools. The Process: The UEFI password on a Surface Pro 4 is stored in a non-volatile memory chip on the motherboard
: Choose Troubleshoot > Advanced Options .
While modern EEPROM chips store data without power, sometimes the internal registers controlling the validation loop can get stuck. A deep hardware power drain is the non-invasive hardware step you should try before seeking specialized technical help. Step-by-Step Power Drain surface pro 4 bios password reset high quality
Some online discussions have explored using the , which leverages Microsoft's Surface UEFI Configurator tool. The concept involves generating a self-signed certificate, creating an MSI package that applies a new, less restrictive UEFI configuration (effectively overriding the old one), and then running a reset package to clear everything.
Attach the SOP8 test clip to the chip, ensuring Pin 1 aligns with the red wire. Plug the CH341A programmer into your second PC. Open your programming software (like NeoProgrammer). Click to identify the chip.
Running software like NeoProgrammer or Asurada . High-Level Technical Process Surface Pro 4 Go to product viewer dialog for this item
If you are the original owner or can prove ownership.
| Method | Difficulty | Success Rate | Risk of Bricking | Cost | | :--- | :--- | :--- | :--- | :--- | | Default Passwords | Easy | 5% | Zero | Free | | WinRE Backdoor | Medium | 20% | Low | Free | | Keyboard Brute Force | Easy | 15% (Old FW only) | Zero | Free | | | Hard | 95% | Medium | $10-15 | | Microsoft Debug Port | Extreme | 100% | Low (if you own probe) | $500+ |
💡 If you only need to use the tablet and don't need to change hardware settings, a Windows Factory Reset is the best path. If you must unlock the BIOS itself, professional hardware reflashing is the only confirmed way to remove the lock. If you'd like to explore one of these paths further: Hardware tools needed for a BIOS chip reflash? Step-by-step for a Windows factory reset ? How to check if your device is SEMM managed ? How Do I Remove a BIOS or UEFI Password? The Process: The UEFI password on a Surface
Once the device boots directly into the UEFI screen from Windows, the system occasionally bypasses the password prompt if it validates your secure Windows session. If it lets you in: Navigate to the tab. Select Change Password .
: Save the configuration as an .msi file and run it using msiexec.exe .
Bricking the device permanently.
Microsoft provides a built-in reset feature for Surface devices, including the Surface Pro 4. This method is the safest and most recommended way to reset the BIOS password.
This works because the BIOS chip on these models is not uniquely paired to the motherboard. ⚠️ Important Distinctions