: Download the Surface UEFI Configurator from the official Microsoft Download Center.
Method 3: Software Workarounds (When UEFI Access is Not Mandatory)
Reconnect the battery and screen loosely. Power on the device while holding the Volume Up button to test if the UEFI menu opens without a password prompt. Once verified, permanently reseat the screen with fresh adhesive tape.
However, depending on your goal, you have a few options ranging from simple bypasses to advanced hardware fixes. 1. Try Common "Master" Passwords surface pro 4 bios password reset high quality
Keep a record of the serial number and the password in a safe place.
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If you cannot access the UEFI but simply want to wipe the device or boot into Windows, you can often bypass the need to enter the BIOS altogether. : Download the Surface UEFI Configurator from the
Companies like SurfaceProRepair , TechRer , or BIOS-PW.org offer mail-in service.
: Upon restart, a red box will appear. Enter characters from your certificate thumbprint (as prompted). Even if it rejects the unknown UEFI password, it may allow the new SEMM settings to apply.
This appears immediately after turning the device on, often with a black screen and a padlock icon. This password prevents changes to hardware settings like boot order. 2. The Enterprise "Backdoor" (If Applicable) Once verified, permanently reseat the screen with fresh
Press and hold the Power button for a full 30 seconds, then release it.
Run Windows Update regularly to ensure your Surface Pro 4 has the latest security patches and stability fixes.
The NVRAM chip does not require battery power to retain your password.
