Download and Install Lineage OS 15.1 For Galaxy ACE 3 (Android 8.1 Oreo)

Download and Install Lineage OS 15.1 On Galaxy ACE 3 (Android 8.1 Oreo): Hello friends! Today, we are here to give you some exciting information about the latest version of Lineage OS and how any Galaxy ACE 3 user can install it on their device. Most Android users were waiting eagerly for the update for Lineage OS 15.1 to arrive and it has finally come out. Lineage OS is one of the most popular lines of custom ROMs in the Android market and its latest update is based on the source code of Android 8.1 Oreo OS. It comes to us with the help of kotzir who has kind enough to share this unofficial build that works really well for Galaxy ACE 3. This custom ROM comes with not only the features of Oreo firmware, but it also has a lot of exciting additional features which will turn you into a fan. As we speak, a new update is being worked on and that update will come with a lot of bug fixes and optimizations. So it is recommended if you can wait for a few more weeks, then you should install that update instead as this update has a few bugs here and there.

Galaxy series is one of the most used lines of devices in the world. If you count up all the users of Galaxy series users then the number will definitely come in millions. Most of its devices are world class and the same goes for Galaxy ACE 3 as it was a top-notch device when it came out. This one comes equipped with a 4.0-inch display screen with a resolution of 800x480p, a Broadcom BCM21664 Dual Core 1.0GHz Cortex-A39 processor, Broadcom VideoCore IV GPU, 1 GB RAM, 4 GB internal storage capacity, and a removable 1500mAh Li-Ion battery. It runs on Android 4.2 Jelly Bean OS, and its other features include a 5.0 MP rear camera, a secondary VGA camera, Wi-Fi, Bluetooth, GPS, and more.

If you are a Galaxy ACE 3 user who wants to root their device and install Lineage OS 15.1, then this guide will be like gold dust to you. Here, we will be giving you all the important information regarding Lineage OS and custom ROMs, and then we will give you a step-by-step guide which will help you install this new update.

New Android 8.1 Oreo Related Updated Posts

Lineage OS 15.1 Features | Android 8.1 Oreo Features

As Lineage OS 15.1 is based On Android 8.1 Oreo’s Source code, it has all the latest Android Oreo features and in addition to that Lineage OS also has some extra customization features.

#1 AutoFill

Android 8.1 Oreo now comes with Autofill feature which was available in the Chrome browser until now. The feature, Auto Fill mode which means that the OS will save your Email Address as well as Password. This will save your precious time.

#2 Adaptive Icons

Now Android also added Adaptive Icons which means that the smartphone will now have an option to modify the default icons for various applications in many shapes such as squircle, square, rounded and others. This is done to ensure that the icons on different apps are in line with the other apps for uniformity purpose. This will make your phone looks cool and minimalistic

You may Like: How to get Android 8.1 Oreo Adaptive Icons feature on Android 5.0 and above

#3 Updated Emoji

In Android 8.1 Oreo, Google has once again updated the default emojis present in the Android OS to a blob-less emoji version rather than blob version which was seen on Android 7.0.There many new emojis are added to enhance your messaging experience

#4 Notification Dots

This feature is same as the one present on Android 7.0 Nougat where users can long press on home screen to see the options but this feature is now extended to show notifications of that particular app by long pressing the icon.

#5 Picture -In- Picture Mode

The picture in Picture mode which is also known as PiP mode is also added to Android 8.1 Oreo. This will be shown in floating window rather than the split-screen.

#6 Google Play Protect and 2X Boot Time

This “Google Play Protect” is added in the Google Play Store and it will be a background service that will check for apps and its usage and data storage permissions and notify users if it is safe to install and use the app.

Thanks to the great optimization in Android 8.1 Oreo, the boot will now take 10 seconds to do so which is a significant improvement. (Previously 15-20 Sec.)

Above are some of the main features Android 8.1 Oreo (Lineage OS 15.1.0) comes with. But there are much more. Overall Lineage OS is the best Custom ROM available for Android.


  • 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 Lineage OS 15.1 On Galaxy ACE 3.

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

Download Lineage OS 15.1 For Galaxy ACE 3

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Steps To Install Lineage OS 15.1 On Galaxy ACE 3 | Android 8.1 Oreo Update (Lineage OS 15.1 For Galaxy ACE 3)

  • 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.

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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