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Android Pie 9.0 GSI on Redmi 4 Prime with Project Treble / Generic System image

Here we are sharing the first ported Android Pie 9.0 GSI for Xiaomi Redmi 4 Prime based on Android Pie 9.0. GSI is also known as a Generic System image. We already shared the complete list of devices supported for Android Pie 9.0 Generic System image (GSI). This guide will help you to install the Android Pie 9.0 GSI on Redmi 4 Prime (markw).

Google finally revealed the next version of Android OS called Android 9.0 Pie. The update is been rolling out to Pixel phones now. The currently supported devices are Google Pixel, Pixel XL, Pixel 2 and Pixel 2 XL. Google announced the Android Pie beta preview earlier this year and includes lots of new features. Google also say’s that the devices that were a part of the Android P developer preview program with brands such as Sony, Xiaomi, Oppo, OnePlus, Essential, and more along with some Android One phones, will get the Android 9.0 Pie in the fall.

As we all know, Google introduced the Project treble last year with the Android 8.0 Oreo. Project Treble has made it easier for OEMs to port newer Android versions to their devices, but it has also made it easy for Custom ROM developments. With the help of project treble, every company can easily skin their Android OS to their preferences in a very quick and easy way.

Android Pie 9.0 GSI on Redmi 4 Prime with Project Treble / Generic System image

Xiaomi Redmi 4 Prime Now Supports Project Treble

Now we have a good news for Xiaomi Redmi 4 Prime (markw) users. You can now download and install the Android Pie 9.0 GSI on Redmi 4 Prime. Full Credits to the XDA Recognized Developer erfanoabdi who just ported the Android P beta version from Google Pixel XL(marlin) with the help of project treble. Recently, The ROM development community has completely boosted Custom ROM development with the help of Project treble. We’ve seen the Lineage OS, Resurrection Remix, Mokee OS, Pixel Experience has made their way to support most of the budget device based on Kirin, Exynos, Lineage, and other obscure brands.

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In this guide, you can now install the Android Pie 9.0 GSI on Redmi 4 Prime (markw). You can just follow the below guide to enjoy the new Android Pie 9.0 before it’s official rollout. There is no confirmation whether the Xiaomi will officially support Android Pie 9.0 on Xiaomi Redmi 4 Prime smartphone. Here is the list of devices which will receive official Android Pie 9.0 on Xiaomi.

Steps to Install Android Pie 9.0 GSI on Redmi 4 Prime (markw):

Well, you heard it correct and you are in the right place. You can now flash the Android Pie 9.0 Generic System image on Xiaomi Redmi 4 Prime using the project treble 8.1 vendor. Before flashing, make sure to download the pre-required drivers and ROM package.

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Pre-Requisite:

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Warning: Known Bugs:

  • Camera not working, even when enabling HAL3 manually from build.prop
  • Notification LED not working (LED is working only when charging)
  • Double Tap To Wake not working.

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Required ROM and Gapps Package:

Instructions to Flash:

To flash the Android Pie 9.0 GSI on Redmi 4 Prime, you need the latest TWRP Recovery 3.2.1-1 or higher. If you already have, then make sure to download the above-given links.

  1. First of all, make sure to download and move all the above required ROM packages on your Redmi 4 Prime Internal storage.
  2. Extract the P-DP4-sGSI-Aonly.zip file. Complete Guide on How to extract any Zip file on Android devices.
  3. Now reboot your phone into TWRP Recovery and Swipe Allow Modifications (Appears for the first time only)
  4. Once you are in TWRP Recovery, first of all. Take a complete backup of stock or custom ROM using TWRP.
  5. Now wipe the cache, data, and system before flashing the new Android Pie 9.0 on Redmi 4 Prime.
  6. To Wipe data: Go to Wipe —> Advanced Wipe and select Dalvik/ART cache, cache, System, Vendor, and Data and then swipe to wipe. [su_note note_color=”#fef0ef” text_color=”#000000″]Warning: Make sure not to select Internal storage[/su_note]TWRP Wipe System Data and Cache Screenshot
  7. You can now flash the AICP OS aicp_13.1-2018xxxxx-NIGHTLY.zip
  8. To flash AICP on Redmi 4 Prime: In TWRP Recovery, tap on Install button –> select aicp_13.1-2018xxxxx-NIGHTLY.zip and swipe to flash. MK81.0-whyred-2018xxxxx-NIGHTLY.zip
  9. Now flash the extracted image file on TWRP: Tap on Install Button —> Select the extracted P-DP4 image file –> Swipe to flash TWRP Flash IMAGE File
  10. You have to mount the partition before flashing the remaining POST-sGSI zip file on your Redmi 4 Prime. Follow the procedure to mount the partition. To mount, Tap on Mount button –> Select System and Vendor. Mount-TWRP-partition
  11. Now you can flash the POST-sGSI_1.zip, POST-sGSI_2.zip and POST-sGSI_3.zip on your Redmi 4 Prime –> TWRP –> Install –> select the post-sGSI zip file
  12. Once you are done, now flash the P lag Fix.Zip file.
  13. Again Mount System and vendor partitions just like 10th step
  14. Now flash incall.zip to fix the incall sound issue.
  15. Now reboot and enjoy Android Pie 9.0 GSI on Redmi 4 Prime (markw).

I hope this guide was helpful to install the Android Pie 9.0 Generic System image on Redmi 4 Prime using the project treble 8.1 vendor.

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