Enter Maskrom Mode

About Maskrom Mode

In Rockchip platform development, RKDevTool is a commonly used flashing tool. We can enter Maskrom mode and use RKDevTool to flash the firmware.

tip

Maskrom mode is the "hardware first-aid kit" for embedded devices, enabling device recovery by directly accessing the chip's low-level interfaces.

Maskrom mode is a built-in low-level recovery mode in Rockchip chips. When the device cannot boot from any storage media (eMMC, SD card, etc.), we can use RockUSB protocol to rewrite the device firmware.

Entering Maskrom Mode

Our board features a dedicated Maskrom button. To enter Maskrom mode, press and hold the Maskrom button before powering on the board. The system will detect the button press and automatically enter Maskrom mode.

Detailed steps:

① : Press and hold the Maskrom button

② : Power on the board using the power adapter

③ : Release the Maskrom button

④ : Connect the board's OTG port to your computer's USB port using a data cable

After the board enters Maskrom mode, you can use the RKDevTool to verify the mode.

Verifying Maskrom Mode

Windows

On Windows, open the RKDevTool. The software will automatically detect if the board is in Maskrom mode.

If the board is in Maskrom mode, the bottom left corner of the software will display Found One MASKROM Device.

Linux / MacOS

On Linux/MacOS, you can use the RKDevTool to verify if the board is in Maskrom mode.

Use the rkdeveloptool ld command to check the Maskrom mode status.

Linux / MacOS$

sudo rkdeveloptool ld

If the terminal outputs a message similar to the following, the board is in Maskrom mode:

Linux / MacOS$

DevNo=1	Vid=0x2207,Pid=0x350e,LocationID=109 Maskrom