Installing System to microSD Card

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

File Downloads

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

Preparing the microSD Card

Insert the microSD card into an SD card reader, then connect the reader to a USB port on your PC.

Flashing 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.

Windows

Please download balenaEtcher-2.1.4.Setup.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.

Linux

Please download balena-etcher_2.1.4_amd64.deb. Once the download is complete, please install it by executing the following command in the terminal:

sudo dpkg -i balena-etcher_2.1.4_amd64.deb

2. Open Etcher

   

3. Click Flash from file to select the image to write to.

Image Note

The downloaded system image is in compressed format. You must decompress it first before using Balena Etcher for image flashing.

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

   

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

   

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

   

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

Booting the System

After successfully flashing the microSD card as described above, insert the microSD card into the microSD card slot (as shown in the image below), then power on the device. The system will start booting, and the desktop will be displayed on the HDMI screen.

Logging into the System

tip

Android system may take a longer time to start up after flashing, please be patient and wait for it to complete.