Download And Install AOSP Android 11 for Sony Xperia 1 II
Sony Xperia 1 II (codename: pdx203) launched in February 2020. The phone came out of the box with Android 10 Q. In this tutorial, we will show you how to...
Mohammed Huwais
Last updated on November 24, 2025
Mohammed Huwais
Author
I started my career as a blogger in 2014 and also worked on an Android niche platform to gain extra income. I cover the topic on How to guides, software updates, Custom ROM updates and also product review. I'm 24 years old, completed MBA (Master of Business Administration) from Sikkim Manipal University.
Sony Xperia 1 II (codename: pdx203) launched in February 2020. The phone came out of the box with Android 10 Q. In this tutorial, we will show you how to install the AOSP Android 11 on Sony Xperia 1 II (pdx203). Recently, Google released its latest stable Android 11 for the general public. And with that, many OEMs were quick to adopt the same. First in the line were the Pixel devices, which were anyways along the expected lines. Later Google released the AOSP source code for Android 11 which is undoubtedly the main ingredient to compile Android 11-based custom ROMs.
The Sony Xperia 1 II features 6.5 inches 4K QHD display with a resolution of 1644×3840 pixels at a pixel density of 643 pixels per inch (PPI) and an aspect ratio of 21:9. The display on the front with no obstructions like a notch or a punch-hole. Sony made good use of the top and bottom bezels since the phone has stereo front-firing speakers.
Android 11 and Its Features:
Well, Android 11, Google’s 11th iteration looks similar to Android 10 but with a handful of new features and changes. The update brings notification history, Chat bubbles, Conversation notifications, screen recorder, new media controls, smart device controls, one-time permission, improved dark theme with the scheduling system, app suggestions, wireless android auto, and many more. For more, check out our article Android 11 supported list, Android 11 Custom ROM list, best Android 11 features, and many more.
How to Install AOSP Android 11 on Sony Xperia 1 II:
With such a long list of goodies to offer, no doubt you will want to try out the AOSP Android 11 on Sony Xperia 1 II (pdx203). But before we list out the installation steps, please go through the prerequisites section. Make sure your device meets all the mentioned requirements. After this, go through the working features and the list of known issues present in this ROM. Once you have gone through all the requirements sections, you may then proceed with the installation steps.
Next time, enable USB Debugging on your Sony Xperia 1 II. This will make your device recognizable by your PC in ADB mode. So head over to Settings > About Phone > Tap on Build Number 7 times > Go back to Settings > System > Advanced > Developer Options > Enable USB Debugging.
Next up, you will also need to install the TWRP Recovery on your device. This will be needed to flash the AOSP Android 11 on your Sony Xperia 1 II. You could refer to our comprehensive tutorial on how to Install TWRP Recovery For Sony Xperia 1 II.
Download AOSP Android 11
Before you download the firmware file, there is a pretty important worth mentioning. You should only use the proper vendor and firmware of your device of stable ROM.
Once you have downloaded the above files, transfer it to your device. Then proceed with the below steps to install AOSP Android 11 on your Sony Xperia 1 II (pdx203) device.
Warning
Before we begin with this procedure, I would strongly recommend you to create a backup of your device storage and all your files stored on your device. Moreover, it is advised to follow the steps mentioned in this post very carefully to avoid permanent damage or to brick your device. If anything goes wrong the author or GetDroidTips is not responsible for it.
Install AOSP Android 11 on Sony Xperia 1 II (pdx203)
Connect your device to PC via USB cable. Make sure USB Debugging is enabled.
Then head over to the platform-tools folder, type in CMD in the address bar, and hit Enter. This will launch the Command Prompt.
Execute the below command in the CMD window to boot your device to TWRP Recovery:
adb reboot recovery
Now head over to the wipe section and format system, data, and cache. Perform a right swipe to complete the format. TWRP Home
Its now time to flash the AOSP Android 11 ROM onto your Sony Xperia 1 II. For that, head over to Install, select the AOSP ROM ZIP file and perform a right swipe to install the file.
If you want Google Apps as well, then you need to flash it at this instance itself. Go to Install, select the GApps ZIP file, and perform a right swipe to flash this file.
When that is done, you may reboot your device. Head over to Reboot and select System.
Your device will now boot to the newly installed OS. With this, we conclude the guide on how to install the AOSP Android 11 on Sony Xperia 1 II. Do keep in mind that the first boot might take up some time and you might have to set up your device from scratch.
