Do you want to improve your overall Android experience while using your Google Pixel 3 XL? If you do and if you’re ready to apply specific tweaks and customizations, we might have the perfect solution for you. A new custom ROM that’s based on the stock Android 9.0 Pie firmware is now available and can be successfully installed on the Pixel 3 XL. The ROM, dubbed as AOSiP will grant the same light and pure Android UI but with extra features and capabilities which cannot be found on the default Android system. With the help of these features you can afterwards improve general performance on your Android device.

Android Open Source illusion Project, that’s the full ROM name, represents a firmware powered by Google AOSP and based on pure Android 9.0 Pie system. As mentioned it’s an OS pre-loaded with great features which can ensure important customization and optimization opportunities. Basically, with this software flashed your Google Pixel 3 XL can run faster and better on a daily basis while you enjoy an upgraded battery life. The ROM is fully stable and will smoothly run regardless of the processes that you will choose to initiate on your smartphone.

Of course, the AOSiP ROM isn’t coming as an official Google update. It is a custom ROM, a free aftermarket distribution of stock Android Pie, which was developed and now offered for the Google Pixel 3 XL by those of xda-developers – we must thank the devs for this new update opportunity. Anyhow, you are about to complete an unofficial update operation during which you can lose your phone’s warranty and maybe access to some built-in apps. Don’t worry, if needed the warranty can be restored easily by reinstalling the stock Android OS on your device – then everything will be restored back to factory state.

The flashing process is not hard to complete but setting up AOSiP on Google Pixel 3 XL requires full control over the existing UI. Shortly, there are required other operations before being able to replace the official Android Pie OS with this custom ROM firmware. In that regard, here is what you need to perform before being able to resume the steps explained below:

  • You must unlock the Pixel 3 XL bootloader as that’s the first step to make when having to remove factory restrictions.
  • You need to root your Android device for gaining full control over the default Android system.
  • And you must install a custom recovery image because a custom ROM can be applied only from that environment – our recommendation is to use the latest version of TWRP recovery for the easiest update experience.

A backup is not optional because a fresh Android installation cannot be completed without a full wipe. In our case a hard reset will be required and you will also have to clear app data cache. So, secure the stuffs that weren’t there by default: contacts, call logs, texts, images, videos, audio files, market apps, internet settings, calendar info, saved passwords, IMEI / NVRAM data and so on. In that regard on your Pixel 3 XL you can use different backup and restore solutions: sync files with your Google account and by using built-in cloud storage platforms, use external storage devices, or download and set up already tested backup and restore apps from Google Play.

Make a Nandroid backup if you want to save the current Android OS that runs on your phone. If the AOSiP ROM will not run as you expected you will be able to flash the Nandroid backup package in order to go back to stock, so in this way you can avoid possible issues.

Charge your Google Pixel 3 XL before starting to flash this Android 9.0 Pie based software. Plug in the charger if you want to avoid software related issues as severe problems might occur if a sudden shut down happens during the flashing process – you can even end up in soft-bricking your Google device. Try to avoid such unpleasant situations and charge your handset especially if its power is currently lower than 50%.

On your phone access Developer Options from Settings. If you cannot find this field, go to About Phone and tap repeatedly, for 7 or 10 times, on Built Number – in the end you will receive the ‘you are a developer’ alert. Good, so access Developer Options and from there enable the USB Debugging feature.

A computer is needed as there you have to download the required files. Don’t worry, you won’t have to install risky or complex flashing programs since the update operation will be completed from TWRP recovery.

How to Install Android 9.0 Pie based AOSiP custom ROM firmware on Google Pixel 3 XL

  1. On your computer download the AOSiP firmware file that can be used on your Pixel 3 XL – you can download the update package from this page and you can save the file on your desktop.
  2. Also download Google Apps as this package isn’t pre-loaded on the Android Pie software and it has to be applied separately.
  3. Start by turning off your phone. Then, access recovery mode on your Android device.
  4. As already explained, from recovery you now have to wipe everything that wasn’t there from day one. And for doing so, choose: ‘wipe data factory reset’ followed by ‘wipe cache partition’ and by ‘wipe dalvik cache’.
  5. When done, go back to main menu of recovery and choose to go back to Android Mode.
  6. Take your smartphone and connect it with your computer by plugging in the USB cable.
  7. Then, select the downloaded files and transfer it from desktop to your smartphone.
  8. After completing this step remove the USB cable and switch off your phone again.
  9. Reboot recovery mode on your Google Pixel 3 XL.
  10. In recovery tap on Install and first select the AOSiP custom ROM package. Swipe for starting the flashing process and wait until it’s completed.
  11. When done, repeat the previous step and apply Google Apps on your handset.
  12. Finally, from main menu of recovery select Reboot and enjoy as that was all.

The AOSiP firmware should now boot on your Google Pixel 3 XL. Test this new Android 9.0 Pie software and try the new features and apps that were added. Of course, tell us everything about the update operation and about the AOSiP ROM by using the comments field from below. And, for similar other tutorials and Android related tips and tricks compatible with your Pixel 3 XL check out our ‘how to’ page and stay close. Enjoy.

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