install Android 6.0 Marshmallow on Galaxy Ace 3 LTE with CM13 ROM



Android 6.0 Marshmallow with unofficial CyanogenMod 13 is now available for Samsung Galaxy Ace 3 LTE including variants GT-S7275R, S7275B and S7275T. In this guide you would be able to install Android 6.0 Marshmallow on Galaxy Ace 3 LTE with CM13 ROM by following our guide here at The ROM is stable and can be easily install using custom recovery but still there a a few bugs including NFC, Radio and offline charging. But if you wish to install the CM13 ROM on your Galaxy Ace 3 LTE then go ahead and follow the below description. We have already posted guides on other devices using the same process and now we are repeating the process for Galaxy Ace 3 LTE GT-S7275R, S7275B and S7275T.

There are multiple benefits of installing custom ROM on your Galaxy Ace 3 LTE as it provides a wide range of customizations and limitless modifications which unfortunately you can’t find in the stock firmware. Some custom ROMs gives you freedom to overclock CPU, install tweaking mods and tons of other software to enhance device performance further you can install themes to customize the device look. Just go ahead and install the Android 6.0 Marshmallow on Galaxy Ace 3 LTE.

Note: The Android 6.0 Marshmallow ROM for Galaxy Ace 3 LTE is currently in the testing stages and you may notice some bugs. This not an official update from manufacturer but it’s a custom ROM from third party developers so check twice before installing Android 6.0 Marshmallow via AOSP on your Galaxy Ace 3 LTE.

How to install Android 6.0 Marshmallow on Galaxy Ace 3 LTE with CM13 custom ROM

Before you Begin:

Disclaimer: This tutorial includes multiple operations including Custom Rom, custom recovery etc. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.


  • Please ensure your phone battery should be charged at minimum 80%
  • Download Samsung USB drivers
  • Your device should have a working TWRP or CWM installed on your device

Necessary downloads:

Process to install Android 6.0 Marshmallow on Galaxy Ace 3 LTE

Connect your device to your PC and copy the both ROM and Google apps zip files onto your device storage.

Turn of your device and boot into TWRP custom Recovery menu by the hardware keys combination or using any third party app (Mostly found in Play store).

Once your device enters into TWRP recovery, create a Nandroid backup of your device or follow our guide to create a Nandroid backup (this will create a backup of your complete device including current firmware) if something goes wrong you can restore your previous firmware.

Once the Nandroid process completes, tap on “Wipe” and then swipe the slider from left to right to begin the wipe process (This will reset your device to factory)

Now it’s the time to flash the Marshmallow firmware on your device. Choose install and navigate to the folder in which you have copied the Marshmallow ROM zip file

Swipe across the slider to confirm install, wait for a few minutes till the file is completely installed in your device.

Once done with the above step, now apply the same process with the installation of GApps.

Wait for the installation process to complete.

Once completed Reboot your device.

If your device is taking longer then 7-10 minutes then follow this guide to to fix this issue

That’s it! Android 6.0 Marshmallow via CyanogenMod 13 ROM is successfully installed on your Galaxy Ace 3 LTE GT-S7275R, S7275B and S7275T. If you have any query feel free to contact us by posting your queries in the below provided comment section. Follow us on Facebook/Twitter/Google+ for future update.

A Software Engineer who loves to hang around latest gadgets and writes his own experiences to get the best possible and accurate information.

We will be happy to hear your thoughts

Leave a reply