Galaxy Ace Duos S6802 to XXMJ1 Android 4.3.6 Official Firmware

Samsung has rolled out a new firmware update, XXMJ1 Android 2.3.6, for the Galaxy Ace Duos S6802 after a very long time. Unfortunately, it is now an Android version upgrade but just a minor bug fix and the usual maintenance regional update. You can download this firmware on your phone via Samsung KIES, or if you can’t find it there, we have a manual tutorial as well below that you can follow. You can easily update Galaxy Ace Duos S6802 to XXMJ1 Android 2.3.6 using our tutorial.
As you continue reading, we will guide you through the entire process of how to install XXMJ1 Android 2.3.6 firmware on Galaxy Ace Duos S6802. Please make sure you backup your data with the given tips below and also read the other important tips given as you will need them before proceeding to the update tutorial. This is an unbranded firmware so it can be installed on any Galaxy Ace Duos. Let’s continue with the tutorial below.


Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial

Android 2.3.6 XXMJ1 Firmware Details:

Model: GT-S6802Model name: GALAXY Ace DUOS
Country: Unknown
Version: Android 2.3.6
Changelist: N/A
Build date: Mon, 28 Oct 2013 05:46:40 +0000
Product Code: ORLPDA: S6802XXMJ1
CSC: S6802ORLNA1
MODEM: S6802XXML1
If you plan on rooting this phone or are still confused for why to root Galaxy Ace Duos S6802, read: Benefits of Rooting Your Android Device.

Samsung Galaxy Ace Duos USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung Galaxy Ace Duos properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy Ace Duos USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

• Backup your Apps. How? –> How to Backup Android Apps.
• Backup your SMS messages. How? –> How to Backup/Restore SMS Messages.
• Backup Contacts, Gmail and Google Data. How? –> Sync with Google Sync.
• Backup Call History. How? –> How to Backup Call History.
• Backup WhatsApp Messages. How? –> How to Backup/Restore WhatsApp Messages.
• Backup APN Settings: GPRS, 3G, MMS Settings. How? Note down everything from: Settings > Wireless & Networks (More…) > Mobile networks > Access Point Names.

Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.
If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.