MaskRom Mode

The RK182X development kit does not provide a Loader mode. USB firmware upgrades and bootloader recovery must use the board's MaskRom key.

Read the instructions carefully and operate with the board powered off.

Enter MaskRom Mode

1. Disconnect the development kit from the power supply.
2. Set the USB SEL switch to 1.
3. Connect the OTG port to the host computer with a Type-A data cable.
4. Press and hold the board's MaskRom key.
5. Power on the development kit while holding the key.
6. Check the upgrade tool for a MaskRom device.
7. Release the key after the device is detected.

The board is now ready for firmware writing.

Check MaskRom Mode

Windows

AndroidTool should display a MaskRom device in the device list. If the device is not detected, check the USB driver, the Type-A data cable, the USB SEL switch, and the OTG connection.

Linux

Run upgrade_tool and check whether the connected device is listed as MaskRom:

sudo upgrade_tool