If you operate either a Xiomi Redmi 6 or 6 A which are also known as cereus (Redmi 6) and cactus (Redmi 6A), then you’re in for some great news!

What is GSI?

GSI is an acronym for Generic System Image. The tag Generic is used to reveal that software images can be uploaded on any Treble-enabled device (both Redmi 6 and Redmi 6A are enabled) regardless of the manufacturer.

You can easily find a list of devices supported for Android Pie 9.0 GSI. Full list of all GSI supported ROMs can be found here.

Just the other day, the ROM development community fully boosted Custom ROM development thanks to the Project treble input.

Custom Android Firmware for Redmi 6A (cactus)

We’ll start with listing few Custom ROMs and then we’ll continue with GSI firmware.

Download AEX 5.8 for Redmi 6A

Developed by Utkarsh.

Very clean and fast Custom ROM with a lot of positive reviews. Very similar to AOSP, but comes with a lot of additional features and settings.

How to install AEX 5.8?

  1. Boot into TWRP Custom Recovery.
  2. Wipe Data, Dalvik, System, and Cache.
  3. Install the downloaded ROM .zip archive.
  4. Install vendor file through TWRP:
  5. Optionally proceed with GAPPS installation.
  6. Install Magisk.
  7. Reboot into TWRP once again.
  8. Install additional SMS and Call fix.
  9. Reboot once again and use Magisk to install DolbyAtmos fix.
  10. Final reboot and you can continue using your freshly installed firmware.

Downloads:

Download Cardinal Aosp 5.8.3 for Redmi 6A

Developed by Utkarsh.

Fast firmware version with advanced settings based on AOSP. For the installation tutorial, please check the steps above and just repeat the same steps.

Download ROM: link

Download Pixel Experience for Redmi 6A

Developed by Utkarsh, Wulan17, Samar, Zain Arhabi, Phhusson.

Another good ROM which we could suggest for a try. It is build on Android Oreo 8.1, comes with in-built Gapps. Doesn’t support VoLTE at the moment, probably will be fixed in feature versions.

EvolutionX 9.0 for Redmi 6A

EvolutionX-9.0-arm-a-GAPPS – Awesome and very fast ROM version with tons of customizable features. Comes with inbuilt GAPPS, no need to flash cert files. Required vendor version 10.2.8.

Download ROM: https://androidfilehost.com/?fid=1395089523397919165

RESURRECTION REMIX & AOSP ROMs for Redmi 6A

Please check out the following posts to find download links and installation tutorials for these custom ROMs. We decided that these ROMs deserve separate posts and guides.

GSI / Project Treble ROMs for Redmi 6A

You can check this source for different GSI ROMs: https://androidfilehost.com/?w=files&flid=282119. Most of these ROMs are tested and work pretty good. Keep in mind they all share the same issues: call volume regulation isn’t working, wifi hotspot and USB modem aren’t working as well.

How To Install Lineage OS 15.1

Thanks to the latest Lineage OS 15.1 release, you can upgrade your phone’s firmware to match up Android 8.1 Oreo. The guide below will take you the steps you need to install the Lineage OS 15.1 for whichever device (cereus or cactus).

A distinguished XDA developer created the GSI Lineage OS 15.1 build and together with the team behind Lineage OS made it possible to upgrade the firmware.

The ROM is based on the Android 8.1 Oreo Os, also known as modular ROM.

To install the software (Lineage Os 15.1) on your Xiaomi Redmi and Redmi 6A your smartphone should have both the latest TWRP Recovery and the Bootloader Unlocked.

Having the two installed makes it easy to download and install the Lineage OS 15.1 on your phone. For a successful install, follow our guide on the best steps to take on the upgrade process here.

Lineage OS 15.1 and Features Explained

Lineage OS 15.1 is the newest Stock Custom Firmware that mirrors the stock Android 8.1 Oreo Android Open Source Project.

Together with the official Android 8.1 features, the Lineage platform comes with a plethora of features as well as customization options that will elevate your smartphone beyond the Stock firmware element.

Lineage OS has coined a name in the aftermarket firmware space. The platform is courtesy of the team that is credited with creating cyanogen.

Currently, in the Android domain, Lineage Operating System serves as the best Custom ROM that comes with plenty of features.

Users will be happy to know that the Lineage Operating System 15.1 for cereus (Xiaomi Redmi 6) comes with a weekly as well as a nightly update to fix any bugs or issues. You can as well download and use it as your daily driver!