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File Download​

Install rkdeveloptool​

rkdeveloptool is Rockchip's software for USB burning on Linux/macOS platforms.

The rkdeveloptool can be thought of as an upgrade_tool for the open source version.

If your operating system does not provide rkdeveloptool, you will need to compile and install it from source.

Execute the following command from the command line to install:

sudo apt-get update
sudo apt-get install -y libudev-dev libusb-1.0-0-dev dh-autoreconf pkg-config libusb-1.0 build-essential git wget
git clone https://github.com/rockchip-linux/rkdeveloptool
cd rkdeveloptool
wget https://patch-diff.githubusercontent.com/raw/rockchip-linux/rkdeveloptool/pull/73.patch
wget https://patch-diff.githubusercontent.com/raw/rockchip-linux/rkdeveloptool/pull/85.patch
git am *.patch
autoreconf -i
./configure
make -j $(nproc)
sudo cp rkdeveloptool /usr/local/sbin/

Enter to Maskrom​

  1. Remove MicroSD card, insert eMMC
  2. Set the dip switch below the USB 3.0 cradle to the device side.
  3. Short the Maskrom pin, which is located between the USB 3.0 cradle and the Ethernet.
  4. Connecting a PC host from the OTG port using a USB-A to USB-A cable
  5. Plug in the power cord and power up, if the green light of the power supply is always on, then it has successfully entered the Maskrom mode.
rock 3b otgrock 3b maskrom wire

Using rkdeveloptool​

Write to a file​

tip

rkdeveloptool does not automatically decompress compressed files when writing to them.

You must first extract the used files and specify the extracted files in rkdeveloptool.

tip

rkdeveloptool does not support the selection of a Maskrom device, nor the selection of a storage medium to be written to. Normally, when using rkdeveloptool, only one device and one storage medium are connected in hardware. This step cannot be controlled by software.

If you need to write to multiple devices at the same time, use upgrade_tool.



1. Extract the image file (see **File Download** above for details of the image file, here rock-3b_debian_bullseye-test_xfce_18.img.xz is used as an example)
   xz -d rock-3b_debian_bullseye-test_xfce_18.img.xz
2. Flash Loader
   sudo rkdeveloptool db rk356x_spl_loader__v1.15.113.bin
3. Flash System Image
   sudo rkdeveloptool wl 0 rock-3b_debian_bullseye-test_xfce_18.img

Reboot​

sudo rkdeveloptool rd

Login​

After rebooting the device, you can log in to the system via HDMI or serial port.

tip

Account and password are both radxa.