T-Mobile Samsung Galaxy Tab 3 got a new Android 4.4.4 update version to T217TUVUBNL1. This is an update from previous build version Android 4.4.2 T217TUVUAML1. This was officially rolled out but there no any given changelog of what new features it may bring. But as far as may everyone already knows about it, that the Android 4.4.4 is the last Android KitKat software version right before the arrival of Android 5.0 Lollipop update. T-Mobile has been sending out OTA updates on Samsung products recently, bringing the Chinese language support.
So those who been rocking T-Mobile’s Samsung Galaxy Tab 3 SM-T217T, you may try to check it out via Over-the-air (OTA) or thru Kies. The update itself seems has something to it, as update weights around 537 MB in file size.
The easiest way to update your T-Mobile Galaxy Tab 3 to 4.4.4 T217TUVUBNL1 to get to the latest software update to your tablets is through Over-The-Air or most commonly known as OTA. If you have allowed and enabled the automatic update button in your tablet, a software notification message will prompt you anytime with new updates available for download. However if you disabled the notification settings, you can still manually check updates by simply following the steps described here for you to download available software updates.
Important Note: Most new software updates are irreversible. You cannot reinstall the older software updates on your Galaxy Tab 3 once you start to download the new ones.
Follow the steps described here to check for available software updates:
1. It is recommended to first create a backup of all personal data and apps you have before you update the new software on the device to avoid losing it after the process is finished. Also, ensure that the [phone brand] is sufficiently charged or connected to a power source before starting the update. In some cases, the update can usually take up to 30 minutes and longer depending on the file size of the update.
2. Go to the Home Screen. Tap on the Menu symbol.
3. Scroll to the right. Select Settings.
4. Select the General tab.
5. Scroll down and choose About Device.
6. Tap Software Update.
7. Wait as the [phone brand] searches for software updates.
8. If the [phone brand] already has the latest software version, the device would just prompt with a message saying it is already udated.
If an update is available, the device would prompt to install the new software update. You will then have to follow the on-screen instructions after the message prompts.
On the first boot after the update is finished, the [phone brand]’s screen might look different. You may then check whether all of your personal data and apps are still present. You may restore the backup if your original files were deleted.
Source: T-Mobile Galaxy Tab 3