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Install OS to MicroSD Card

This article explains how to install the operating system to a MicroSD card and boot the system from it on ROCK 4A/4B/4A+/4B+/4SE.

File Download​

Download the ROCK 4A/4B/4A+/4B+/4SE system image from the resource download page.

Prepare MicroSD Card​

Insert the MicroSD card into an SD card reader, then connect the reader to your PC's USB port.

Write the Image​

Balena Etcher is a cross-platform and user friendly image file burning tool that we recommend you use.

  1. Download Etcher and install it.

Please download balenaEtcher-Setup-1.18.11.exe After the download is complete, there is no need to perform any additional actions. After downloading, you can double click it to open it without any additional operation.

  1. Open Etcher

  2. Open Etcher and click Flash from file to select the image to write to.

  3. Click Select target to select the device, please select carefully.

  4. Click Flash! Start writing and wait for the write progress bar to complete.

  5. When writing the image successfully, Etcher will display Flash Complete!.

If there is an error in flashing, please try again.

Boot the System​

After successfully writing the image to the MicroSD card, insert it into the MicroSD card slot (as shown below), then power on the device. The system will start booting, and the desktop will be displayed on the HDMI monitor.

sd slot

Login to the System​

After the system boots, log in with the following credentials:

  • Username: radxa
  • Password: radxa
tip

The entire boot process from power-on to desktop takes about 40 seconds.