RetroCompass
RetroCompass

GPD XP Plus — Custom firmware

Quick answer

Button combo

Google Playinstall RetroArch / ES-DE / Daijisho

Steps

  1. 1Understand that the XP Plus is an Android device with no official Linux or muOS firmware.
  2. 2Open Google Play (preinstalled) and install RetroArch and your standalone emulators.
  3. 3Add a front-end such as ES-DE or Daijisho to organize and launch your library.
  4. 4Place ROMs you own on a microSD card and point your front-end to that folder.
  5. 5If an app isn't on Google Play, sideload its APK from a trusted source you trust.
Last verified: 2026-06-20Source: gpd.hk

On the GPD XP Plus, custom firmware does not mean replacing the operating system. It runs Android with Google Play preinstalled, so you customize it by installing emulation apps from normal app sources: RetroArch for many systems, standalone emulators, and a front-end like ES-DE or Daijisho to tie your library together. There is no official Onion OS, muOS, or Linux build for this Android handheld, and this guide does not cover rooting, custom Android ROMs, or unlocking the bootloader. Keep ROMs you legally own on a microSD card and point your launcher at them.

FAQ

Can I install Onion OS or muOS on the XP Plus?
No. Onion OS and muOS are Linux firmwares for SD-card handhelds. The XP Plus is an Android device, so you install Android apps like RetroArch, ES-DE, and Daijisho instead.
Does the XP Plus have Google Play?
Yes, the GPD XP Plus ships with Android and Google Play preinstalled, so you can install RetroArch, standalone emulators, and front-ends directly, or sideload an APK when needed.

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