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This document introduces how to install Android image to Rock 3a.

Rock 3a can boot from microSD card or eMMC, so install os on microSD card or eMMC based on your choose.

Install the operating system

Preparation​

  • 1x microSD card (capacity >=8GB)
  • 1x microSD card reader
  • 5V power adapter (recommended [Radxa Power PD30W] (/accessories/pd-30w))

Image Download​

Please go to Resource Download to download the corresponding image file.

Install the system​

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

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

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

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

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

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

Start the system​

  • After successfully burning the microSD card as described above, insert the microSD card into the microSD slot of the Radxa ROCK 3A.
  • The power supply interface of Radxa ROCK 3A is USB 2.0 OTG Type C port, please use Type-C cable to connect the power supply port and the adapter.
tip

Radxa ROCK 3A supports QC 3.0/2.0 adapter, 9V/2A, 12V/1.5A. Radxa recommends using the Radxa Power PD30W.

Frequently Asked Questions​

Reference​