Tips & Tutorials

Update Galaxy Grand 2 Duos G7102 to XXUBNH6 Android 4.4.2 KitKat Official Firmware

Galaxy Grand 2 Duos G7102 has received another KitKat firmware update, XXUBNH6 Android 4.4.2. The previous update brought itself with a newer Android version, newer TouchWiz UI, newer features. This update is a bit different. It will refine on the initial update, fixing where necessary, upgrading where needed. Some users held back from the first KitKat update due to reliability concerns but we believe this update has fixed everything and is a must try for all owners. XXUBNH6 is available on Samsung KIES and OTA(Over-the-air) update but only for few users. Our guide will remove the need of waiting on Samsung by showing you how you can test out this build right now. G7102XXUBNH6 is an official firmware update, not a modified or custom ROM. You can easily update Galaxy Grand 2 Duos G7102 to XXUBNH6 Android 4.4.2 KitKat official firmware and root Galaxy Grand 2.

As you continue reading below, we will guide you how to install XXUBNH6 Android 4.4.2 KitKat on Galaxy Grand 2 Duos G7102 using ODIN. We have also given some tips on how to backup your phone data and have given some other important tips. Don’t forget to backup all your apps and personal data as a precaution. Besides apps, we recommend you also back up your photos, downloads and documents just in case. Let’s continue with the tutorial now.

Samsung Galaxy Grand 2 Duos G7102 - XXUBNH6 Android 4.4.2 Jelly Bean

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 😉

XXUBNH6 Android 4.4.2 Firmware Details:

Model: SM-G7102
Model name: GALAXY Grand 2 DUOS
Country: India
Version: Android 4.4.2
Changelist: 2577397
Build date: Thu, 21 Aug 2014 13:42:04 +0000
Product Code: INU
PDA: G7102XXUBNH6
CSC: G7102ODDBNH1
MODEM: G7102DDUBNH1

You might find these following Galaxy Grand 2 Duos G7102 related articles interesting:

If you plan on rooting this phone or are still confused for why to root Galaxy Grand 2 Duos G7102, read: Benefits of Rooting Your Android Device.

Samsung Galaxy Grand 2 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 Grand 2 Duos properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy Grand 2 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:

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.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and KitKat.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. You can now head over to the next page and update Galaxy Grand 2 Duos G7102 to Android 4.4.2 XXUBNH6 official firmware update.

About the author

Taimur Akmal

Devoted writer, enjoys developing code. Appreciates excellent food, exceptional coffee and great company. He is also into sublime design and nicely built cars.

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