Download Lineage OS 17.1 and 17 for Mi 9

Lineage OS 17.1 for Mi 9 is now available to download and install from a developer build. This article explains how to install Mi 9 Lineage OS 17.1 ROM based on Android 10, with a step-by-step guide.

The Mi 9 LineageOS 17 build is brought to you by developer randomblame and the LineageOS 17.1 build is brought to you by developer vince31fr. For other Android 10 based custom ROM builds you can always visit this Android 10 Download page for supported devices.
 

Follow the links to get other Android 10 builds such as: LineageOS 17.1 and Android 10 Download for supported devices.

DONATION TO DEVELOPER(S)/PROJECT:

If you like this ROM then do consider for a contribution to randomblame, vince31fr and LineageOS project:
– No donation link found for randomblame
– Donate to vince31fr
– Donate to LineageOS project

[su_note note_color=”#F9D9D9″ text_color=”#AA4343″ radius=”3″ class=”” id=””]DISCLAIMER:
THIS IS AN INITIAL TEST BUILD OF LineageOS 17 FOR Mi 9, WHICH MAY NOT BOOT AT ALL.
MAKE SURE TO BACKUP ALL DATA OF YOUR PHONE AND KEEP IT IN YOUR MIND THAT YOU ARE FLASHING AT YOUR OWN RISK.[/su_note]

[su_note note_color=”#FBF4DD” text_color=”#A38C68″ radius=”3″ class=”” id=””]Installing LineageOS 17 for Mi 9 requires an unlock bootloader on Mi 9, 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.[/su_note]

Status of the Mi 9 LineageOS 17 Android 10 custom ROM:

What is LineageOS 17.1 with MicroG for Mi9?

MicroG is Google Apps alternative for Android, basically required for custom ROMs. MicroG provides all the core services that are required to run some of the Google Apps.
So, what is included in this ROM?

• GmsCore, GsfProxy, FakeStore, maps API (MicroG core apps)
• F-Droid Privileged Extension (for seamless package installation with FDroid)
• Aurora Services (for seamless package installation with Aurora Store)
• Etar-Calendar instead of LineageOS Calendar (completely useless with MicroG)

Where to Download Lineage OS 17.1 for Mi 9?

How to Install Lineage OS 17.1 on Mi 9?

[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]
Following are the two sub-sections of this Mi 9 LineageOS 17 update guide:

1. First time installation of LineageOS 17
2. Upgrading LineageOS 17 from a previous build of LineageOS 17 ROM

[/su_note]

Installing Lineage OS 17.1 on Mi 9 for the first time:

[su_note note_color=”#D8F1C6″ text_color=”#769958″ radius=”3″ class=”” id=””]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.[/su_note]

1. Download and Copy the Lineage OS 17.1 or 17 ROM zip file and the GApps for LineageOS 17 to your phone.
2. Boot into the TWRP custom Recovery to install the Lineage OS 17.1 custom ROM. Make sure to use the TWRP provided in above downloads section or any system-as-root configured TWRP for Mi 9
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- By now your phone must have an unlocked bootloader to proceed with other steps. If not, unlock the bootloader first and proceed ahead.[/su_note]
3. Wipe the data partition, Cache partition, vendor partition and system partition.
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a guide explaining how to wipe using TWRP recovery.[/su_note]
   [su_note note_color=”#FBF4DD” text_color=”#A38C68″ radius=”3″ class=”” id=””]This will delete all your data on your phone. You may consider taking a complete backup of your phone data or take a backup of all relevant partitions.
   – How to backup data on Android
   – how to take NANDROID backup using TWRP recovery[/su_note]
4. ADB Sideload the Mi 9 Lineage OS 17.1 zip file
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to do ADB sideload using TWRP[/su_note]
5. Reboot into the TWRP recovery again.
6. Then install the LineageOS 17 GApps package.
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to install GApps using TWRP recovery.[/su_note]
7. Reboot and Enjoy the Android 10 based LineageOS 17 for Mi 9.

Upgrading from earlier version of LineageOS 17.1 for Mi 9 (cepheus):

1. Copy the latest ROM zip file of Lineage OS 17.1, GApps and/or Magisk ROOT package to the phone
2. Boot into Recovery to flash the updated Lineage OS 17.1 build
3. Wipe the system partition from the TWRP recovery menu.
4. ADB Sideload the Mi 9 Lineage OS 17.1 zip file
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to do ADB sideload using TWRP[/su_note]
5. Reboot and see you have the GApps and ROOT access or NOT.
   [su_note note_color=”#D8F1C6″ text_color=”#769958″ radius=”3″ class=”” id=””]- Gapps is built in such a way that it will sustain across ROM updates.[/su_note]
6. If you don’t have GApps after upgrading the LineageOS 17 on your phone, then flash the GApps.
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to flash GApps using TWRP recovery.[/su_note]
7. If you don’t have ROOT after upgrading the LineageOS 17 on the phone, then flash the SuperSU or Magisk or the Lineage SU binary.
   [su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining How Root LineageOS 17[/su_note]
8. Once everything is done, reboot and Enjoy the Lineage OS 17.1.

[su_note note_color=”#D8F1C6″ text_color=”#769958″ radius=”3″ class=”” id=””]Complete the initial setup and enjoy Android 10 with Lineage OS 17.1 on Mi 9.[/su_note]

How to Root Mi 9 on Lineage OS 17.1?

After installing Lineage OS 17.1 on Mi 9 you may want to enable ROOT access on your phone and here is how you can do that:
– How Root LineageOS 17

[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]If there is no ROOT access for some reason even after installing the LineageOS SU binary, then you can try SuperSU Zip to enable ROOT access.[/su_note]

Where to Download Google Camera for Mi 9 Lineage OS 17.1?

GCam 7.0 and later version are compatible with Lineage OS 17.1 or any Android 10 ROM in general.
You can always look into the big list of GCam APK download for supported devices for more options.