Tips & Tutorials

Install UBUCNJ1 Android 4.4.2 on Galaxy S4 Mini Duos I9192 KitKat Official Firmware

After announcing the first ever KitKat update for Galaxy S4 Mini I9192, Samsung has followed it up with an even better firmware UBUCNJ1 Android 4.4.2. Based on the same Android 4.4.2 KitKat revision, this firmware will be addressing all of the initial bugs which users have been worried about. Although there isn’t much change on the UI side of things but this upgrade addresses major internal errors making for a better experience than the first one. People who weren’t willing to risk their daily driver phone with an unreliable KitKat firmware can now finally update. You should instantly check with Samsung KIES and OTA (Over-the-air) update for UBUCNJ1 Android 4.4.2. If you don’t find it there, you can follow along our tutorial which will guide you through each and every step of the update process. The delay of this firmware arriving on these services is associated with regional differences. I9192UBUCNJ1 is an officially endorsed firmware and not a custom ROM. You can easily update Galaxy S4 Mini Duos I9192 to UBUCNJ1 Android 4.4.2 KitKat official firmware and also root your phone.

As you continue reading below, we will guide you how to install UBUCNJ1 Android 4.4.2 KitKat on Galaxy S4 Mini Duos I9192 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. Accumulated user data such as photos, downloads or documents are the first things such updates are prone to erase so keep your device fully backed up to avoid frustration of any sort. Let’s continue with the tutorial now.


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 ( 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 4.4.2 UBUCNJ1 Firmware Details:

Model: GT-I9192
Model name: GALAXY S4 mini DUOS
Country: Brazil
Version: Android 4.4.2
Changelist: 2943642
Build date: Mon, 06 Oct 2014 20:07:47 +0000
Product Code: ZTO

You might find these following Galaxy S4 Mini I9192 related articles interesting:

Samsung Galaxy S4 Mini 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 S4 Mini Duos properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy S4 Mini 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 S4 Mini Duos I9192 to Android 4.4.2 UBUCNJ1 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.

1 Comment

  • Hi. SuperSu was created but in the about: still 4.2.2 shows. I tried both with auto reboot and without in both cases there was some action in recovery mode.

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