Surface Pro 4 Bios Password Reset High Quality Jun 2026

: This requires specialized tools like a CH341A USB Programmer and careful soldering/desoldering on the motherboard.

[Surface Motherboard] ──> [SOP8 Clip] ──> [CH341A Programmer] ──> [Fixing PC via USB] 1. Open the Surface Pro 4

: Save the configuration as an .msi file and run it using msiexec.exe .

Beware of Malicious Software executables: Never download unverified .exe files claiming to unlock your Surface BIOS from within Windows. Windows lacks the low-level permissions required to modify a locked Surface UEFI state directly. surface pro 4 bios password reset high quality

Use a specialized hex editor or community-verified patching tool to locate the password hash section and overwrite it with clean, default values.

The Surface Pro 4 does not rely on a volatile CMOS battery to store its BIOS password. Unplugging the main battery for days will not clear the memory.

: The technician must open the device (risking screen damage), locate the Winbond BIOS chip, dump the current firmware, patch the password out using hex editing tools, and re-flash the chip with "clean" firmware. : This requires specialized tools like a CH341A

: Unless you have experience with micro-soldering, this is best performed by professional repair services found on platforms like Black Horse Repairs . Method 3: Factory Reset Without UEFI Access

There are several reasons why you might need to reset the BIOS password on your Surface Pro 4:

A message should appear, sometimes showing a hint or a specific code (e.g., 54321 or a string of numbers/letters). Note down this code precisely. The Surface Pro 4 does not rely on

Hook the SOIC8 clip onto the chip, ensuring Pin 1 matches the designated layout on the CH341A programmer.

Find the Winbond or Macronix SOIC8 EEPROM chip on the motherboard (commonly labeled near the CPU shield).

In this article, we will provide a high-quality guide on how to reset the BIOS password on your Surface Pro 4. We will cover various methods, including using the built-in UEFI firmware settings, jumper pins, and third-party tools. Before we dive into the solutions, let's first understand what the BIOS password is and why it's essential to reset it.