This guide requires Microsoft Windows to follow

This procedure will wipe all data on the device

This procedure requires disassembling the device

This guide is based on this guide on 4pda

Instructions

1. Download the device's stock ROM
2. Download the SPD Flash Tool with drivers and unpack them
3. Install the drivers
4. Open SPD Flash Tool: ResearchDownload.exe
5. Press on the gear icon on the top left
6. Select the .pac file
7. Press on the triangle icon
8. Plug in the device while holding both volume buttons
9. Hold the buttons until the process is finished