RetroCompass
RetroCompass

RG28XX — Firmware update

Quick answer

Button combo

POWER(boot from TF1)

Steps

  1. 1Back up your saves and ROMs from the TF2 card to a computer first.
  2. 2Download the latest official RG28XX OS image from anbernic.com and unzip it to get the .img file.
  3. 3Open balenaEtcher, select the .img, choose your TF1 (OS) microSD card, and flash it.
  4. 4Return the imaged card to the TF1 slot and the ROM card to the TF2 slot.
  5. 5Power on; the stock Anbernic OS boots and runs its first-time setup automatically.
Last verified: 2026-06-20Source: anbernic.com

The RG28XX runs a Linux Anbernic OS on the Allwinner H700, and the official firmware ships as a disk image (.img) that you write to the TF1 (OS) microSD card with a normal imaging tool such as balenaEtcher; there is no in-device OTA updater. The TF2 card keeps your ROMs and saves and is not touched by re-imaging TF1, but back it up first as a precaution. The current public release on the Anbernic download portal is RG28XX-V1.1.3-EN32GB (the 64GB image must be requested from Anbernic customer service). This is a DRAFT for human review.

FAQ

Which microSD card does the firmware go on?
The TF1 (OS) slot. The TF2 slot holds your ROMs and saves and is not overwritten when you write the OS image, but back it up first to be safe.
Is there an over-the-air update on the device?
No. On the H700 stock OS you update by flashing the official .img to the TF1 card with balenaEtcher; there is no built-in OTA updater.

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