Tips & Tutorials

How to Update Galaxy Mega 5.8 I9150 to UBUAMG3 Android 4.2.2 Official Firmware

Samsung Galaxy Mega 5.8 doesn’t have much firmware updates available, but here is UBUAMG3 Android 4.2.2 Jelly Bean that you can install on your phone. This can come in handy when you try to mess around with your phone trying to root it or do something else with the system files. One flash of this and everything will be back to normal. Just a heads up, this firmware for the Galaxy Mega 5.8 I9150 is also available at Samsung KIES, but some regions might not have it. You can easily update Galaxy Mega 5.8 I9150 to UBUAMG3 Android 4.2.2 Jelly Bean official firmware from our tutorial below.

As you continue reading below, we will guide you how to install UBUAMG3 Android 4.2.2 Jelly Bean on Galaxy Mega 5.8 I9150 using ODIN. Please note, I9150UBUAMG3 firmware is an official firmware by Samsung, not a custom or modified firmware. 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. We don’t want anyone losing their data due to any issues. Let’s continue with the tutorial now.

Samsung Galaxy Mega 5.8 GT-I9150 - UBUAMG3 Android 4.2.2 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 ( 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 😉

UPDATE: UBUAMI1 Android 4.2.2 latest firmware update can now be downloaded. Read tutorial here!

Android 4.2.2 UBUAMG3 Firmware Details:

Version: 4.2.2

If you plan on rooting this phone or are still confused for why to root Galaxy Mega 5.8 I9150, read: Benefits of Rooting Your Android Device.

Samsung Galaxy Mega 5.8 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 Mega 5.8 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy Mega 5.8 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 Jelly Bean.

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 Mega 5.8 I9150 to Android 4.2.2 UBUAMG3 official firmware update.

About the author

Haris Nadeem

He lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.