Usage

Requirements:

A copy of this UEFI (uefi.img)
A Surface Duo (Gen 1) (Any Storage Capacity)
⚠️ Surface Duo (Gen 2) support is currently experimental/PoC!
Google's Android Platform Tools: https://developer.android.com/studio/releases/platform-tools

Unlock Surface Duo Bootloader

⚠️ Unlocking the bootloader will wipe all user data on the device, make backups prior doing so!

Open Settings
Go to about
Tap 10 times on the Build Number field, enter pin code if requested, you should have Developer options enabled
Go to system, developer options
Turn on Allow OEM Unlocking
Run in a command prompt: adb reboot bootloader
Wait for the device to reboot in bootloader mode
Run in a command prompt: fastboot flashing unlock
Select yes to the unlock bootloader question
Let the device wipe itself

Boot the UEFI firmware

Run in a command prompt: adb reboot bootloader
Wait for the device to reboot in bootloader mode
Run in a command prompt: fastboot boot <path to uefi.img downloaded or built from this repository>