Download LineageOS 18.1 for Redmi K20 / Mi 9T

Unofficial build of LineageOS 18.1 for Redmi K20 / Mi 9T is now available to download. This article explains how to install the ROM on the phone with a step-by-step guide.

This LineageOS 18.1 build for Redmi K20 / Mi 9T is brought to you by the Unofficial Lineage Team.

Follow the links to get other Android 11 builds: Android 11 Download for supported devices.

DONATION TO DEVELOPER(S)/PROJECT:
LineageOS 18.1 development and porting is a voluntary work! If you want this project keep going, please contribute to the developer(s) and the LineageOS project:

– Donate to LineageOS project

[notification style=”danger”]DISCLAIMER:
INSTALLING A CUSTOM ROM MAY DELETE ALL THE DATA ON YOUR PHONE.
MAKE SURE TO BACKUP ALL IMPORTANT DATA.

KEEP IT IN MIND THAT YOU ARE FLASHING AT YOUR OWN RISK.[/notification] [notification style=”warning”]Installing LineageOS 18.1 for Redmi K20 / Mi 9T requires an unlock bootloader on Redmi K20 / Mi 9T, which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup all data on the phone.

You are the only person making changes to your phone; neither the developer nor I can be held responsible for the mistakes done by you.[/notification]

Status of the Redmi K20 / Mi 9T LineageOS 18.1 ROM

WHAT’S WORKING:
– Almost Everything

KNOWN ISSUES:
– Unknown

[notification style=”success”]

Where to download LineageOS 18.1 for Redmi K20 / Mi 9T?

LineageOS 18.1 Download for Redmi K20 / Mi 9T – Download
Redmi K20 / Mi 9T TWRP Download (davinci) for this Redmi K20 / Mi 9T LineageOS 18.1 ROM
- How to install TWRP recovery
- Redmi K20 / Mi 9T unlock bootloader guide – required to install TWRP recovery
GApps for Android 11
How to Root Android 11
Download ADB to sideload the ROM
– 15 Seconds ADB Installer for Windows
– Minimal ADB and Fastboot for Windows
– ADB Fastboot for Linux / MAC

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How to Install LineageOS 18.1 on Redmi K20 / Mi 9T?

[notification style=”info”] Following are the two sub-sections of this Redmi K20 / Mi 9T LineageOS 18.1 update guide:

First time installation of LineageOS 18.1 for Redmi K20 / Mi 9T
Upgrading LineageOS 18.1 for Redmi K20 / Mi 9T from a previous build of LineageOS 18.1 ROM

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First time Installation of LineageOS 18.1 on Redmi K20 / Mi 9T

[notification style=”info”]This ROM update process requires few guides to be followed and few files to be downloaded. Everything referred in the below guide is provided in the above downloads section.[/notification]

Download and Copy the LineageOS 18.1 ROM for Redmi K20 / Mi 9T and a compatible GApps to your phone.
Boot into the TWRP custom Recovery to install this Redmi K20 / Mi 9T LineageOS 18.1 ROM. Make sure to use the TWRP provided in above downloads section or any system-as-root configured TWRP for Redmi K20 / Mi 9T
[notification style=”warning”]- By now your phone must have an unlocked bootloader to proceed with other steps. If not, unlock the bootloader first and proceed ahead.[/notification]
Wipe the data partition, Cache partition, vendor partition and system partition.[notification style=”info”]- Here is a guide explaining how to wipe using TWRP recovery.[/notification][notification style=”danger”]This will delete everything on your phone! You may consider taking a complete backup of your phone data or take a backup of all relevant partitions. Below are few links that may help you in backing up:
– How to backup Android data
– how to take NANDROID backup on TWRP recovery[/notification]
Install the Redmi K20 / Mi 9T LineageOS 18.1 ROM file using TWRP recovery or any custom recovery of your choice
(OR)
Use ADB Sideload to install the ROM.
[notification style=”info”]You can use any one of the above mentioned method to install the ROM zip file on the phone.[/notification]
Reboot into the TWRP recovery again.
Then install the Android 11 GApps package.
[notification style=”info”]- Here is a post explaining how to install GApps using TWRP recovery.[/notification]
Reboot and Enjoy the Android 11 based LineageOS 18.1 for Redmi K20 / Mi 9T.

[notification style=”success”]Complete the initial setup and enjoy Android 11 with LineageOS 18.1 on Redmi K20 / Mi 9T.[/notification]

Upgrading LineageOS 18.1 on Redmi K20 / Mi 9T (davinci):

Copy the latest ROM zip file of LineageOS 18.1 for Redmi K20 / Mi 9T, Magisk ROOT package to the phone
Boot into Recovery to flash the updated ROM for Redmi K20 / Mi 9T
Wipe the system partition from the TWRP recovery menu.
Install the Redmi K20 / Mi 9T LineageOS 18.1 update, either using TWRP recovery or ADB Sideload.
Reboot and see if you have the GApps and ROOT access or NOT.
[notification style=”success”]- Most Gapps are built in such a way that it will sustain across ROM updates.[/notification]
If you don’t have GApps after upgrading the LineageOS 18.1 on Redmi K20 / Mi 9T, then download Android 11 GApps and then flash it.
[notification style=”info”]- Here is a post explaining how to flash GApps using TWRP recovery.[/notification]
If you don’t have ROOT after upgrading the LineageOS 18.1 on Redmi K20 / Mi 9T, then flash the Magisk rooting package or follow this Android 11 root guide.
Once everything is done, reboot and Enjoy the LineageOS 18.1 on Redmi K20 / Mi 9T.

Add-on links for Redmi K20 / Mi 9T

– Android 11 GCam
– Google Camera for all supported devices

Visit the Redmi K20 / Mi 9T (davinci) page for Google Camera updates, other Android 11, Android Oreo ROMs, Nougat ROMs, or other ROMs and all other device specific topics.