[ROCKCHIP] Creating a Bootable GammaOS Core SD Card

For Rockchip devices only

• IF USING MIYOO FLIP, FOLLOW THIS FIRST: https://github.com/TheGammaSqueeze/GammaOSCore/wiki/Miyoo-Flip-Install
• IF USING GKD BUBBLE, FOLLOW THIS FIRST: https://github.com/TheGammaSqueeze/GammaOSCore/wiki/Flashing-the-SPI-NOR-Firmware-on-the-GKD-Bubble-Linux-Gaming-Device

Recommended SD Card

A 32GB A2 spec microSD card is required, with performance equivalent to:

• Samsung Pro Plus
• SanDisk Extreme Gaming

**DO NOT USE AMAZON BASICS OR CHEAP BRANDS. These are unreliable. **

Using low-quality cards may result in poor performance or boot failures.

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Instructions (Windows Only)

Important Notes

• Do NOT use DD, Win32DiskImager, or balenaEtcher etc. Tools like these will not work. Only use the supplied SDDiskTool.
• Ensure you have 7-Zip installed to extract files.

Steps

1. Download Required Files:

   • GammaOS Core image for your device: Releases.
   • SDDiskTool_v1.69.zip.

2. Extract Files:

   • Extract SDDiskTool_v1.69.zip.
   • Extract GammaOS_Core_BetaX_XXX.7z using the password provided.

3. Insert SD Card:

   • Use a reliable card reader to insert your microSD card.

4. Open SD Firmware Tool:

   • Launch SD_Firmware_Tool.exe from the SDDiskTool_v1.69 folder.

5. Select Options:

   • Choose SD Boot in the application.
   • Click Firmware and select the extracted .img file from the GammaOS Core archive.

6. Create the Bootable Card:

   • Click Create. This may take a few attempts to succeed.

7. Finish:

   • Eject the microSD card once completed.
   • Insert the card into your device and boot as you would with any Linux OS.