Install System to Onboard eMMC

Flash System

This guide explains how to use the RKDevTool to flash a system image to an eMMC.

Note: Ensure the board is in Maskrom mode and properly recognized by the system.

Windows

On Windows, open the RKDevTool and follow these steps to install the system to the eMMC.

① : Select the corresponding Loader file for your board

② : Select the corresponding system image file for your board (extract the downloaded image archive before use)

③ : Choose the eMMC option as the system storage medium

④ : Check the Write by Address option

⑤ : Click the RUN button to execute all operations

⑥ : Monitor the operation progress through this interface

Disconnect the board from the PC, then power cycle the device. The system will automatically boot from the eMMC.

Linux / MacOS

On Linux/MacOS, use the terminal command line to install the system to the eMMC.

1. Run the Loader file

Replace demo.bin with the Loader file corresponding to your board.

Linux / MacOS$

sudo rkdeveloptool db demo.bin

2. Install the system image

Replace demo.img with the system image corresponding to your board.

Linux / MacOS$

sudo rkdeveloptool wl 0 demo.img

3. Reboot the system

Disconnect the board from the PC, then power cycle the device. The system will automatically boot from the eMMC.

Linux / MacOS$

sudo rkdeveloptool rd

Boot the System

After the system installation is complete, connect the HDMI display, then re-plug the power adapter to boot the system.

①: Connect the display and the board using an HDMI or DP cable

②: Connect a mouse or keyboard using the USB-A interface

③: Power the board using a 5V DC power adapter

If the board is powered normally, the Radxa NX5 system indicator LED and the Radxa NX5 IO Board power indicator LED will light up green. If the system boots normally, the Radxa NX5 system indicator LED will blink green, and the Radxa NX5 IO Board status indicator LED will blink blue.

Log In

When you first boot the system, you need to log in using the default username and password.

The default credentials for Radxa OS are:

Item	Value
Username	radxa
Password	radxa