Download and Install Lineage OS 14.1 On Gretel A9 (Android Nougat)

Download and Install Android Nougat 7.1.2 On Gretel A9 Via Lineage Os 14.1: Hello friends! Today, we are here to tell you all about Lineage OS 14.1 and how one can install the update for Lineage OS 14.1 on their Gretel A9. Most of you might have heard about Lineage OS as it is one of the biggest and most popular families of custom ROMs. Every now and then Lineage OS has released some of the most astonishing custom ROMs with amazing features. Custom ROMs not only come with the features of the Operating System they are based on, but they also come with a whole bunch of other features which are not available in the factory firmware. The Lineage OS 14.1 is based on the source code of Android 7.1.2 Nougat OS and it comes with some of the most amazing features one can come across in any custom ROM.

Gretel A9 comes equipped with a 5.0-inch display screen having HD display of 1280x720p, a MediaTek MT6737 Quad Core 1.2GHz ARM Cortex-A53 Processor, ARM Mali-T720 MP2 GPU, 2 GB RAM, 16 GB ROM storage capacity, and a non-removable 2300mAh Lithium-Ion battery. It runs on Android 7.0 Nougat OS out of the box, and its other features include Fingerprint scanner, an 8.0 MP rear camera, a 2.0 MP front camera, Dual SIM standby, USB Type-C, Wi-Fi, OTA Sync, and more.

This post is dedicated to all the Gretel A9 users who want to Install Android Nougat 7.1.2 On Gretel A9 Via Lineage Os 14.1. In this post, they will get all the needed information on this topic. We will also be answering the most frequently asked questions regarding custom ROMs and Lineage OS. Once the doubts are cleared, the users can take a look at the step-by-step guide which will help them install this update.

If you are new to the term “Custom ROMs” then you have to know what Custom ROM means, What are the benefits of using Custom ROMs.

What is Custom ROMs On Android?

Custom ROMs are based on Official Android source codes which are customized or developed by developers or a community of developers. Custom ROMs come with loads of extra customizations which makes them unique and popular among the android lovers. Remember, Custom ROMs are not provided by Google or other mobile vendors but are developed and maintained by the community and its contributors.

Some example: Lineage OS (Previously known as CyanogenMod), Paranoid Android etc.

Benefits Of Custom ROMs

1) Vanilla Android (Pixel Style)

Most Of the AOSP Based Custom ROMs are bloatware free and have very close to the stock look and feel which makes them super snappy. These ROMs are very optimized for battery and performance.

2) Root Access

Most of the Custom ROMs are pre-rooted. The process of gaining full admin control of the Android device is called Rooting On Android. It’s similar to running programs as administrators in Windows.

After rooting your device you can install different MODs, kernel, ROMs on your device. You can install latest Android updates (like the Android 6.0.1 marshmallow) On old device by installing third party ROMs like CyanogenMod 13.You can overclock the CPU and GPU of your device to get the best performance. You can hibernate any app you want. You can underclock the CPU to get better battery life.

For more information about Android rooting, check out our detailed post here > What Is Rooting Android Phone? Advantages And Disadvantages
3) Regular Updates

Most of the Android smartphone manufacturer provides 2-year software support and after that, the devices won’t get any official update. In that case, users have to fully depend on Custom ROMs to test the latest Android on their devices.

Most of the developers of the Custom ROMs provide a 4)regular update which is one of the best things about Custom ROMs.

4) Customization

Android is famous for Customization and Custom ROMs take this to another level. Unlike Stock vanilla android Custom ROMs come with various customization options. We are sharing few of them below

  • Users can enable or disable navigation bar
  • Users can customize navigation bar and Status bar icons
  • Some Custom ROMs come with different MODs
  • Some Custom ROMs come with Custom Kernels which allow users to Overclock or underclock the CPU and GPU.
  • Some Custom ROMs come with support for Third party themes
5) Battery and Performance

Most Of the Custom ROMs are very close to stock vanilla android in look. The Custom ROMs are very optimized which results in better battery life and smooth performance.

About Android 7.1.2 Nougat (Lineage OS 14.1):

The Android 7.1.2 Nougat Update is an incremental update that which comes with a number of bug fixes and optimizations. All the features from Android 7.0 and 7.1 are available in Android 7.1.2 Nougat. The performance and system stability is much improved with the latest update. One of the silent features introduced in 7.1.2 is fingerprint gestures

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  • Make sure the bootloader on your device is unlocked and your device is rooted and you have a custom recovery installed.
  • Make sure your device has more than 50% battery.
  • Make sure you have taken a backup of your important data. Now proceed To Install Android Nougat 7.1.2 On Gretel A9 Via Lineage Os 14.1

Disclaimer is not responsible for any damage happened to your device(s) while following this guide, proceed at your own risk.

Download Lineage OS 14.1 For GRETEL A9

Steps To Install Android Nougat 7.1.2 On Gretel A9 Via Lineage Os 14.1

Download and Install Android Nougat 7.1.2 On Gretel A9 Via Lineage Os 14.1

  • Make sure your device is rooted and have the latest TWRP recovery installed. (Check the Pre-Requirement Section Above)
  • First, download the files from the above link.
  • Now transfer the downloaded files to the internal storage of your device.
  • Now reboot to the TWRP recovery by holding your Armor and volume down buttons together for a few seconds.
  • Take a backup by selecting the option from the home screen and then your data and cache from the recovery menu.
  • Now select install and then browse for the downloaded ROM file and then select it.Next flash the Gapps file and then Magisk (optional).
  • Once the flashing process is completed, reboot your phone and you will be booted into Android Oreo 8.0.

If you have any doubts regarding this article, feel free to comment below.


Rootmygalaxy a.k.a RMG was started in 2015 with a solo goal of Helping users with easy How-to guides. Slowly the website started sharing exclusive Leaks and Tech News. In these 5 years, we have been credited by the likes of Forbes, CNBC, Gizmodo, TechCrunch, Engadget, Android Authority, GSM Arena and many others. Want to know more about us? Check out our About Us page or connect with us Via Twitter, Facebook, Youtube or Telegram.

Dibyashree Sharma

An NIT Rourkela Graduate in CS, Blogger, Android Geek, and a Tennis Fanatic. I have been writing about Android OS for Last 8 years.

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