Surface Pro 4 Bios Password Reset High Quality May 2026

Step 1: Disassembly

Step 2: Connect the Programmer

Step 3: Read and Backup (CRITICAL)

Step 4: Extract the Password Hash

Step 5: Write a Clean Dump

Step 6: Reassemble

Note for beginners: This method has a 99% success rate but a 50% brick rate if you mishandle the clip. Consider a repair shop ($50-$100).

The Surface Pro 4, like most business-class devices, has a BIOS (UEFI) lock that can be set to prevent unauthorized booting or OS changes. If you forget the password—or buy a used device with an unknown password—resetting it is not trivial and cannot be done via a simple CMOS battery removal (the SP4 has no user-accessible CMOS battery).

The Surface Pro 4 BIOS password cannot be reset by a USB drive, command line, or magic code. It requires physical access to the SPI flash chip.

Don't let a 16-character password turn your $800 tablet into a paperweight.

Have questions about the SPI method? Check the comments or visit r/Surface on Reddit for chip-specific dumps.

Surface Pro 4 Go to product viewer dialog for this item. BIOS/UEFI Password Reset Report Resetting a forgotten UEFI (BIOS) password on a Surface Pro 4

is a complex process because Microsoft does not provide a software-based "master" reset code or a simple jumper on the motherboard. 🛠️ Recovery Methods 1. Official Support Path

Microsoft officially states that it cannot retrieve or reset a UEFI password.

Recommendation: Contact your IT department if the device was managed by an organization.

Replacement: If the password is lost and access to UEFI settings is required, the only official solution is often a full device or motherboard replacement. 2. Software Workarounds (Advanced)

Some advanced users have reported success using configuration tools for managed devices.

SEMM Method: If the device was part of a Microsoft Surface Enterprise Management Mode (SEMM) setup, running a "reset package" with the device's serial number may clear the password.

External Boot: While it does not reset the password itself, you can sometimes bypass the internal SSD by holding Volume Down while powering on with a bootable USB drive. 3. Hardware Modification (High Risk) surface pro 4 bios password reset high quality

For devices acquired second-hand with locked BIOS settings, hardware reflashing is the most effective "high-quality" fix, though it requires professional soldering skills.

Reflashing: The process involves carefully removing the screen (high risk of breakage), desoldering the BIOS chip (model 1724), and using a hardware programmer to write a "clean" BIOS image.

No Pair Lock: This works because the BIOS chip on these models is not uniquely paired to the motherboard. ⚠️ Important Distinctions

UEFI Password vs. Windows Password: A UEFI password blocks hardware settings and sometimes booting. A Windows password can be easily bypassed by performing a "Hard Reset" (Hold Shift + Restart > Troubleshoot > Reset this PC).

CMOS Battery: Unlike traditional desktops, simply pulling the battery on a Surface Pro 4

often does not clear the UEFI password due to non-volatile storage.

💡 Key Takeaway: 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?

Resetting a forgotten UEFI (BIOS) password on a Surface Pro 4 is significantly more difficult than on a standard laptop. Microsoft does not provide a software-based tool for users to reset this password, and typical methods like removing the CMOS battery generally do not work because the password is stored in non-volatile EEPROM memory.  1. Hardware Modification (Expert Level) 

Because Microsoft cannot retrieve or reset the password, the only definitive "high quality" way to remove it is by physically reflashing the BIOS chip. This is a complex task that should only be performed by a professional technician: 

Access the BIOS Chip: The Surface Pro 4 must be disassembled, which is high-risk as the screen is glued and prone to cracking.

Desolder the Chip: The BIOS chip (on model 1724) is often desoldered because it is too close to a heat shield for a standard clip.

Reflash Firmware: The chip is placed on a programmer to overwrite the original BIOS region with a "clean" one, effectively removing the password.

Reassembly: The chip is soldered back onto the motherboard and the device is re-glued.  2. Microsoft Configuration Tool (Enterprise Only) 

If your device was part of an organization, it might be managed via the Microsoft Surface Enterprise Management Mode (SEMM). 

How to Handle a Locked Surface Pro 4 BIOS: Methods and Realities

Forgetting your Surface Pro 4 UEFI (BIOS) password can feel like hitting a brick wall. Unlike standard Windows login passwords, which are relatively easy to reset, Microsoft's UEFI security is designed to be rigorous. Microsoft Support officially states that they cannot retrieve or reset these passwords for you. If you are stuck, 1. Distinguishing BIOS from Windows Passwords First, ensure you are actually locked out of the BIOS.

Windows Password: This is the screen you see after the Surface boots up. You can reset this by holding the Shift key and selecting Power > Restart from the login screen, then choosing Troubleshoot > Reset this PC.

BIOS/UEFI Password: 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) Step 1: Disassembly

If your Surface Pro 4 was originally a corporate or school device, it may be managed via the Surface Enterprise Management Mode (SEMM).

Contact IT: Admins can often push a "reset package" to the device to clear UEFI settings.

Certificate Reset: Some technical users have found success by entering incorrect details until the prompt closes, then using the Surface Configuration Tool to run a reset package with the device’s serial number. 3. Clearing TPM (Low Success Rate)

In some specific firmware versions, clearing the Trusted Platform Module (TPM) can reset security flags. Power off your Surface.

Hold the Volume Up button and press Power to enter UEFI settings.

If you can reach any menu, navigate to Security > Clear TPM.

Warning: This will not work if the BIOS itself is password-protected from the start, but it can resolve some secondary security lockouts. 4. Advanced: Manual CMOS and BIOS Reflashing

For home users without enterprise tools, the only "high-quality" fix is hardware-based. This requires technical expertise and opening the device, which may damage the screen. Bios password locked out surface pro 8 - JustAnswer

You cannot reset a forgotten Surface Pro 4 UEFI (BIOS) password through standard software methods or CMOS battery removal

Microsoft officially states that if you lose this password, it cannot be retrieved or reset by them. Microsoft Learn

For high-quality technical recovery, you have three primary paths: the official hardware service route, a complex chip-level hardware bypass, or a specific software configuration workaround if you still have Windows access. 1. Hardware Bypass (Chip-Level)

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

. To reset it, a technician must disassemble the device—which often involves removing the glued-on screen —and desolder the BIOS chip. Reflashing: Once removed, the chip is placed on a programmer (like the RT809F Serial ISP Programmer

) to read the current data, "clean" or reflash the BIOS region, and then solder it back onto the board.

This process is extremely risky; it can break the screen during disassembly or corrupt the touch screen firmware, rendering touch input unusable. 2. Software Workaround (SEMM Method)

If you still have access to the Windows operating system on the device, you may be able to clear the password using the Microsoft Surface Enterprise Management Mode (SEMM) The Concept:

SEMM allows organizations to manage UEFI settings via software packages. The Steps: Download the Surface UEFI Configurator Microsoft Support

Create a "Configuration Package" using a self-signed certificate. When prompted for a UEFI password in the configurator, leave it blank Install the resulting package on the Surface and reboot. Step 2: Connect the Programmer

During the "Red Box" boot screen, purposefully enter incorrect characters until it allows a boot. Some users report that after subsequent reboots, the password field is cleared. EduGeek.net 3. Microsoft Service & Support

For most users, the safest "high-quality" option is contacting Microsoft Surface Support

Resetting a Surface Pro 4 BIOS Password For the Microsoft Surface Pro 4, a BIOS (UEFI) password is a high-level security feature. Unlike standard desktop PCs, you cannot reset it by simply removing a battery or moving a jumper. Official Microsoft Stance

Microsoft officially states that it cannot retrieve or reset a forgotten UEFI password for the Surface Pro 4. There is no software tool or "master password" provided by the manufacturer for this purpose. If you lose this password and need to change BIOS-level settings (like boot order), Microsoft typically recommends a full hardware replacement. Technical Workarounds (Advanced Users Only)

Because there is no standard software reset, the only known "high quality" way to remove the password involves advanced hardware modification. This should only be attempted by professional technicians as it carries a high risk of permanently damaging the device. Reflashing the BIOS Chip:

The Process: This requires opening the device—which is difficult as the screen is glued down—and desoldering the BIOS chip (model 1724) from the motherboard.

Programming: The chip is placed on an external programmer, the firmware is reflashed to a "clean" version without a password, and the chip is soldered back onto the board. Known Risks:

Loss of Touch Functionality: Reflashing with an incorrect or non-original BIOS region can lead to the touchscreen failing. In these cases, the BIOS may show a touch firmware version of "000000".

Hardware Damage: Opening a Surface Pro 4 often results in a cracked screen or damage to delicate internal flex cables. Common Misconceptions to Avoid Surface pro 4 UEFI password - Microsoft Q&A

place. You cannot reset your UEFI password, and Microsoft cannot retrieve it. " 4 people found this answer helpful. Microsoft Learn

I’m unable to provide a tool, script, or step-by-step guide for bypassing or resetting a BIOS password on a Surface Pro 4 (or any device) when the password is unknown and the device is not yours.

However, I can explain legitimate, high-quality methods for resetting the BIOS password on a Surface Pro 4 when you are the legal owner and have proof of ownership.

Microsoft maintains a secret hardware debug port on the Surface Pro 4 motherboard (JST 4-pin connector near the SSD). This port speaks JTAG/SWD.

If you have access to a Surface Debug Probe (MS Part #X885495-001), you can attach it to this port and send the command: fpt -erasebiospassword fpt -clrbiospassword

These tools are not sold to consumers. They are available to Microsoft Certified Refurbishers. Unless you work for a large IT department, ignore this method.

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.

Introduction

The Surface Pro 4 remains a capable device for many professionals and students. However, a forgotten BIOS password can turn a useful tool into an expensive paperweight. Unlike traditional desktop computers, the Surface Pro 4 utilizes a Unified Extensible Firmware Interface (UEFI) rather than a legacy BIOS. Because the hardware is proprietary and highly integrated, standard "remove the CMOS battery" tricks do not work.

This guide provides a high-quality, technical overview of the legitimate methods available for recovering or resetting a Surface Pro 4 UEFI password.

If the first method doesn't work, you might need to use a third-party tool designed for resetting BIOS/UEFI passwords. Tools like Hiren's BootCD or Kon-Boot can be effective, but be cautious and ensure you download these tools from their official sources to avoid malware.