RetroCompass
RetroCompass

GKD Pro — Custom firmware

Quick answer

Button combo

(power off)(power off)write CFW image to microSD/TF(verify chip first)

Steps

  1. 1Identify the chip first: confirm the GKD Pro's exact SoC (e.g. on the box or product page) before choosing any firmware.
  2. 2If it is Rockchip RK3566, use a matching ROCKNIX, Batocera, or Knulli RK3566 image; ArkOS (RK3326-only) does NOT apply.
  3. 3If it uses a different chip, only use firmware explicitly listed for that chip and for the GKD Pro.
  4. 4Write the verified image to a microSD/TF with balenaEtcher and apply any device profile the project provides.
  5. 5Keep your stock card so you can switch back, then boot and finish setup.
Last verified: 2026-06-20Source: game-kiddy.com

Custom firmware must match the chip, and the GKD Pro's exact SoC was not confirmed from public sources at the time of writing, so verify it before flashing. GKD's other recent Linux units are mostly RK3566 (where ROCKNIX/Batocera/Knulli apply and ArkOS does not), but do not assume this. muOS is Allwinner-only. If you cannot confirm a supported build for your exact GKD Pro, stay on the stock OS.

FAQ

Which CFW works on the GKD Pro?
It depends on the chip, which should be verified first. If it is RK3566, ROCKNIX, Batocera, or Knulli are the relevant options; ArkOS (RK3326) is not.
Can I just flash any RK3566 image?
Only after confirming the GKD Pro is RK3566 and that the build lists the Pro or a compatible profile. Otherwise keep the stock OS.

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