How to Update Redmi K20 Pro / Mi 9T Pro to Android (Custom ROM Guide)

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4.7/5 Votes: 1
Version
12
Updated
October 11, 2021
Requirements
MIUI 12.0.6.0
Size
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Description

The latest Android 12 source code is released and the same is now available for Redmi K20 Pro / Mi 9T Pro via an Android 12 custom ROM update build. This is a step-by-step guide that explains how to update Redmi K20 Pro / Mi 9T Pro to Android 12.

DISCLAIMER:
Installing a custom ROM requires advanced knowledge to modify the underlying firmware on your phone, such as bootloader unlock, custom recovery installation etc.
If not done properly it may leave the phone unusable temporarily or permanently!
This is a very new build which may not boot at all. Try at your own risk.

Android 12 for Redmi K20 Pro / Mi 9T Pro

Download Android 12 for Redmi K20 Pro / Mi 9T Pro

Visit the Downloads section to download (if direct file is available) or visit the respective custom update guide.
Download the respective ROM build and then follow the instructions (written below) to update the Redmi K20 Pro / Mi 9T Pro to Android 12.

  • Redmi K20 Pro / Mi 9T Pro AOSP Android 12 ROM (Download link in the respective downloads section)

Below are the Android 12 custom ROMs available for Redmi K20 Pro / Mi 9T Pro. Each link has it’s own set of guide that explains how to install the custom ROM on the phone.

Other Requirements to Install Android 12 on Redmi K20 Pro / Mi 9T Pro

To be able to install any Android 12 ROM build on the phone, it must have an unlocked bootloader and a compatible custom recovery installed.
So, to make it easier for you, we have included appropriate guides on the above two, in the below sections.

Plus, the custom ROMs usually lack any Google Apps like: Google Play, Google Maps, etc. out of the box. So, the post installation requiremnt is, GApps for Android 12, which is also included in the below guide.

How to Update Redmi K20 Pro / Mi 9T Pro Android 12?

Installing Android 12 requires an unlocked bootloader and a custom recovery installed on the phone. This is the reason the entire installation guide is divided into three parts as below:

  • Unlocking bootloader on the phone
  • Installing Custom Recovery on the phone
  • Installing the Android 12 ROM on the phone
  1. Redmi K20 Pro / Mi 9T Pro Bootloader Unlock

    Redmi K20 Pro / Mi 9T Pro bootloader unlock guide. A step-by step guide that explains how to unlock bootloader of Redmi K20 Pro / Mi 9T Pro.

    The bootloader must be unlocked on the phone before you can flash the Android 12 custom ROM build!
  2. Install custom recovery on Redmi K20 Pro / Mi 9T Pro

    Custom recoveries are needed to flash any of these Android 12 ROM on Redmi K20 Pro / Mi 9T Pro. Below is a list of step-by step guides that explains how to install custom recovery such as TWRP recovery on Redmi K20 Pro / Mi 9T Pro.

    • Download the TWRP for Redmi K20 Pro / Mi 9T Pro from the downloads section and follow this guide that explains how to Install TWRP
  3. Install prerequisite firmware on the phone

    After installing the TWRP recovery, make sure you install the appropriate firmware on your phone variant before you install Android 12 on it.

    The bootloader must be unlocked on the phone before you can flash the Android 12 custom ROM build!
  4. Install Android 12 on Redmi K20 Pro / Mi 9T Pro

    1. Download one of the available custom ROM of Android 12 for Redmi K20 Pro / Mi 9T Pro and copy it into the phone or keep in the PC if you intend to install using ADB sideload.
    2. Enter into recovery mode and Wipe data, Cache, System and clean Dalvik cache.
      – Make sure you don’t wipe or format Internal memory here. Otherwise you will lose all your phone data!
      Here is a step-by-step guide on how to wipe data using TWRP recovery
      This step will erase the current firmware and may erase all data from the phone. You may choose to keep a backup of important data and the relevant boot and system partition so that you can rollback if the new build doesn’t work properly.
    3. Install Android 12 using TWRP recovery
      (OR)
      Use ADB Sideload to install the Android 12 ROM zip file.
      You can use any one of the above mentioned method to install the zip file on the phone.
    4. Download and Install Android 12 GApps for this ROM.
      – This is a guide that explains how to install Android 12 GApps using custom recovery.
      – Basically, The GApps package provides basic Google Play Services, Play Store application and other Google Applications.
    5. Once done, reboot the Redmi K20 Pro / Mi 9T Pro Android 12 update.

Post Installation Downloads for Android 12

Well, after installing the Android 12 zip file you are done with the Android 12 installation for your phone. But, there are few add-on packages that you can install to unleash the real capabilities of your phone.

Below are some of the extra little things which you can install on top of the Android 12 ROM on your Redmi K20 Pro / Mi 9T Pro.

Rooting on Android 12

Currently, Magisk is the only thing that is actively developed and supports Android 12 rooting.
You can either follow this Magisk rooting guide to enable root.

Google Camera for Android 12

GCam for Redmi K20 Pro / Mi 9T Pro
If the above link does not contain a useful GCam port then search here for a compatible Google Camera APK page to download a GCam port for your phone that may run on Redmi K20 Pro / Mi 9T Pro Android 12.

That’s all on updating the Redmi K20 Pro / Mi 9T Pro to Android 12! If you face any issue, then you can comment below.
Visit the Redmi K20 Pro / Mi 9T Pro (raphael) page to get other Android 12 ROMs or other device specific topics.

 

Download links

How to install How to Update Redmi K20 Pro / Mi 9T Pro to Android 12 (Custom ROM Guide)?

Make sure you download all relevant files and then please follow the Step-by-Step instructions written above to install.

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