RetroCompass
RetroCompass

Powkiddy RGB20S — Firmware update

Quick answer

Button combo

(in CFW) OptionsUpdate(Wi-Fi)·or re-flash the microSD

Steps

  1. 1The RGB20S runs a Linux OS from microSD, so updating means refreshing that OS, not a locked stock ROM.
  2. 2If you already run a community OS (ArkOS, AmberELEC or ROCKNIX), connect Wi-Fi and use its built-in online update (in ArkOS: Options → Update).
  3. 3To update by re-flashing, download the latest image for the RGB20S from the OS project's releases page.
  4. 4Write the image to your boot microSD with Rufus, Win32 Disk Imager or Raspberry Pi Imager, then boot it.
  5. 5Keep your ROMs and saves on the second microSD card so an OS update never touches them.
Last verified: 2026-06-20Source: powkiddy.com

The RGB20S (Rockchip RK3326) has no locked stock firmware: it boots a Linux OS written to a microSD card, so a firmware update is really an OS refresh. The simplest path, if you run ArkOS, AmberELEC or ROCKNIX, is the online updater built into the menu once you are on Wi-Fi. Otherwise download the newest image and write it to the boot card. Note that the RK3326 images for this device flash more reliably with Rufus, Win32 Disk Imager or Raspberry Pi Imager than with balenaEtcher, which is known to misbehave with them.

FAQ

Does the RGB20S get official firmware updates?
Its value comes from community Linux OSes that update themselves over Wi-Fi or by re-flashing the card. There is no traditional locked vendor firmware to patch.
Will updating erase my games?
If your ROMs and saves are on the second microSD (TF2), an OS update or re-flash of the boot card leaves them untouched. Back up saves first to be safe.

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