Update T-Mobile Galaxy S3 LTE SGH-T999L to Stagefright fix T999LUVUBOH1 firmware


T-Mobile started rolling out T999LUVUBOH1 firware update for Galaxy S3 LTE SGH-T999L. The UVUBOH1 update contain Stagefright security fix along multiple improvement in over all system, you can download and install this latest update by following our guide here at Thundeztech.com. Stagefright is a hot topic now a days because its a serious issue by which a hacker get access on your Android device. How it works is very easy, a hacker sends a MMS message containing a video that includes malware code even if you don’t open that message it still attacks your device as Hangouts app in your Android device process the media files attached to the message and save them to the Gallery which becomes a great source of your information leak.

T-Mobile has released this update officially for the Galaxy S3 SGH-T999L, this update also bring multiple improvements and bugs fixes along proper security features to fix the Stagefright issue so we recommend you to keep your Android device updated with the latest firmware. These updates are released over the air but if you want to flash it without waiting for the official OTA update, you can flash it manually using Odin. Below you can find information about your device model number and the firmware information, just keep scrolling down.

T999LUVUBOH1 firmware details:

Model Name: Samsung Galaxy S3 (T-Mobile)
Model: SGH-T999L

Samsung devices can be updated to latest firmware by using three different firmware update methods. You can follow any one of them you find easy but every firmware update process has some limitations and requirements . Below are the three firmware update methods you can follow to update your T-Mobile Galaxy S3 SGH-T999L

How to update T-Mobile Galaxy S3 SGH-T999L via OTA method

This is the first and preferably the most easiest method to update your T-Mobile Galaxy S3 SGH-T999L to T999LUVUBOH1 firmware. You can use your device to download the firmware file if available and then the device will ask you to install the updates now or later. As we mentioned above the limitation of OTA method is that you can update your device to latest firmware only as long as you are present inside the region where the OTA has landed and your device is in stock un-rooted condition because rooted device will not able to receive the OTA updates then you have to un-root your device or switch to the alternative methods like Kies or Odin. To check whether your device is eligible for OTA Firmware update, unlock your device & navigate to

Settings >> About device >> Software update >> Check for updates

This will require a working internet connection to connect to the Samsung servers. You will receive a notification about the latest firmware availability click install to flash the firmware or tap install later to flash later.

How to update T-Mobile Galaxy S3 SGH-T999L via Samsung Kies

Samsung Kies is another useful firmware update application for Samsung and a bit easier to use, just follow the below steps to update your T-Mobile Galaxy S3 SGH-T999L to T999LUVUBOH1 firmware using Samsung Kies.

  1. Download the Samsung Kies application from the Samsung website and install it on your windows PC or Mac.
  2. Once the installation process completes, click the Kies icon to run the application.
  3. Now connect your device to the PC using USB data cable.
  4. You device will be automatically detected by Kies application and now you can perform multiple functions apart from the firmware update. The Kies application allows you to create a backup of your device before updating to new firmware, click the “Backup and Restore” button and follow the on screen instructions.
  5. Once you successfully created a back up of your device now you can update your device to latest available firmware.
  6. Click the Firmware Upgrade button to check whether new firmware is available for your device, if the firmware is available for your device you will be notified.
  7. Proceed further and follow onscreen instructions to start the Update process.
  8. Your device will reboot automatically once the process is completed.

If this process doesn’t helped you, proceed further to manually update your T-Mobile Galaxy S3 SGH-T999L to latest firmware via Odin. Odin is a third party tool use to update the device firmware, this is an official manual way to update the device firmware if the above two methods doesn’t work for you.

How to update T-Mobile Galaxy S3 SGH-T999L Manually using ODIN

To update your T-Mobile Galaxy S3 SGH-T999L via Odin tools you need to download necessary files which you are going to use in the update process.


Before you Begin:

Disclaimer: This tutorial includes multiple operations including Custom Rom, Custom recovery and root. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.

  • Please ensure your phone battery should be charged at minimum 60%
  • Enable USB Debugging, go to Settings >> Developer Options >> USB debugging

Download and Extract T999LUVUBOH1 firmware file from the below provided links.

Process to update your T-Mobile Galaxy S3 SGH-T999L to T999LUVUBOH1 firmware

If you are new to this tool then you have to pay attention on the step by step sequence to avoid any mishap during the update process.

  • Click Odin3.09.exe to run the Odin tool.
  • Now boot your device into Download Mode by turning off your device properly and turn it on again by pressing and holding Home Button+Volume Down +Power Key simultaneously until you see a warning now press Volume up to enter Download Mode.
  • Connect your device to PC via USB cable.
  • If everything goes well Odin will detect your device and the ID:COM box should turn blue which indicates that your device has been successfully added.
  • Please make sure “Auto Reboot & F.Reset Time” options are checked in the Odin screen.


  • Now click the AP tab and select the firmware file that you have downloaded and extracted earlier.
  • Hit the start button at the bottom and wait for the installation process to complete.


  • Once the firmware update process is completed you will see a “PASS” message in the ID:COM box (as shown).
  • Your device will automatically reboot.

That’s it! You have successfully updated your T-Mobile Galaxy S3 SGH-T999L to latest firmware T999LUVUBOH1 firmware. If you have any query feel free to contact us by posting your queries in the below provided comment section. Follow us on Facebook/Twitter/Google+ for future update.

A Software Engineer who loves to hang around latest gadgets and writes his own experiences to get the best possible and accurate information.
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