RetroCompass
RetroCompass

RG34XX — Firmware update

Quick answer

Button combo

POWER(boot from TF1)

Steps

  1. 1Back up the TF2 (ROM) card to a computer first.
  2. 2Download the latest official RG34XX OS image from anbernic.com and unzip the .img.
  3. 3Open balenaEtcher, select the .img, choose your TF1 (OS) microSD, and flash it.
  4. 4Return the imaged card to TF1 and the ROM card to TF2.
  5. 5Press POWER; the stock Anbernic OS boots on the wide 3:2 screen and runs setup.
Last verified: 2026-06-20Source: anbernic.com

The RG34XX runs an Anbernic Linux OS on the Allwinner H700 and the official firmware ships as a disk image (.img) you write to the TF1 (OS) microSD with a normal tool such as balenaEtcher; there is no on-device OTA updater. Re-imaging TF1 leaves the TF2 ROM/save card alone, but back it up first. Public builds are versioned like RG34XX-V1.0.x on the Anbernic download portal, and the official OS is tuned for the device's wide 720×480 3:2 panel. This is a DRAFT for human review.

FAQ

Which card does the firmware go on?
The TF1 (OS) slot. The TF2 card holds ROMs and saves and is not overwritten by the OS image, but back it up first.
Is there an on-device updater?
No. You update by flashing the official .img to the TF1 card with balenaEtcher; the H700 stock OS has no OTA.

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