Android boot image download

Device setup. Evaluating Performance. Feature Implementation. Dynamic Partitions. Devices launching with: Android 12 can use boot header version 3 or 4.

Android 11 can use boot header version 3. Android 10 must use boot header version 2. Android 9 must use boot header version 1.

Android 8 and lower are considered as using a boot image header version 0. Implementing boot image header versioning The mkbootimg tool accepts the following arguments.

Specifies the path to the recovery DTBO image. Version 4 of the boot image header version uses the following format. Devices that: Use GKI requires the android Version 3 of the boot image header version uses the following format.

Version 2 of the boot image header version uses the following format. Version 1 of the boot image header version uses the following format.

See an example of resulting command below:. Start the device in fastboot mode aka bootloader mode, usually by holding power and volume up buttons. Try to boot using the new ROM without flashing it yet, so in case of issue you just have to restart the phone to get it back on trails, replace the. If the phone works successfully with the new boot image, then go back in fastboot mode and flash it permanently:. Once you get them, you can stick to them and even easily script them if you need them often.

I voluntary went into relatively low-level details sometimes because it will make you troubleshooting your issues more easily. Here, at each step you will be able to compare the data you are manipulating with the data coming from the original boot.

Article based on a StackExchange answer. Native Tests. Android Test Station. Test Framework. VTS Dashboard. Lab Infrastructure. Getting Started. Testing with TF. Through Tradefed. Through Suite. Developing TF. XML Configuration.

Global Configuration. Advanced Concepts. Device Manager. Device setup. Evaluating Performance. Feature Implementation. Installing GSI is device-dependent. Refer to your device's manufacturer for the exact tools and procedures. GSI images help to validate apps on Android. We appreciate your feedback on the images, the tools, and the process of enabling GSI on your devices.

Before proceeding, please ensure that data you would like to retain is backed up to your Google Account. Downloading of the system image and use of the device software is subject to the Google Terms of Service.