: Download and create a bootable USB with the chosen tool.
If the above methods don't work, you can contact Microsoft Support for assistance. They can provide you with a special tool to reset the BIOS password. surface pro 4 bios password reset high quality
Before attempting to dismantle your device, try these steps, which are sometimes successful if the password was set incorrectly or a glitch occurred, as shown in this JustAnswer thread : Completely turn off your Surface Pro 4. Volume Up Method: Press and hold the Volume Up (+) button. : Download and create a bootable USB with the chosen tool
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. Before attempting to dismantle your device, try these
Method 2: Microsoft Surface Enterprise Management Mode (SEMM)