Install firmware to eMMC internal storage using SDDiskTool (WINDOWS ONLY) - TheGammaSqueeze/GammaOSCore GitHub Wiki

This is a straightforward process for a new install. You will need a Windows machine, a spare microSD card (minimum of 4GB recommended), and a microSD card reader for your Windows machine.

This will erase all your data currently on the device.

Remove your microSD card in slot TF2 on your Anbernic device until the install is complete and you have fully set up Android.

NOTE: Do not try and use a tool like Win32DiskImager or balenaEtcher, this will not work.

  1. **Download the relevant release for your device, and extract the zipped file. Download SDDiskTool from here: SDDiskTool_v1.69.zip

  2. Insert your spare microSD card into your microSD card reader, insert this into your PC.

  3. Open the SDDiskTool_v1.69 folder, then open the SD_Firmware_Tool.exe application. image

  4. Ensure that you select "Upgrade Firmware", then click the Firmware button. image

  5. Locate your relevant EMMC_GammaOS_Core_BetaX.img file, and open this image

  6. Click Create and let the process begin image image image

  7. Once this is completed, remove your microSD card from the card reader, insert the microSD card into your device (TF Slot 1) and restart/turn on. It will start updating the software. image

  8. Once the install is complete, you will be asked to remove the microSD card. Once this is done, you will boot into GammaOS. The microSD card is no longer required. image

Your first boot into GammaOS will take some time, so please be patient. Your screen may turn off and on during this process (sometimes it might stay off, just turn it back on), and the GammaOS logo may appear several times, this is normal.

Enjoy!