This article is for informational and educational purposes only. Resetting BIOS passwords on hardware you do not own is illegal in many jurisdictions. The methods involving hardware interaction carry a risk of damaging the device. Proceed at your own risk.
For a guaranteed, high-quality reset, you must reprogram the BIOS chip directly. This requires moderate soldering skill or a willingness to take the device to a repair shop. surface pro 4 bios password reset high quality
Surface Pro 4 does not have a removable CMOS battery or jumper. The BIOS is stored in SPI flash memory. This article is for informational and educational purposes
Professional method (not for end users): For a guaranteed, high-quality reset, you must reprogram
Risk: Bricking the device permanently.
If the above methods don't work: