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T-Mobile Samsung Galaxy S3 Android 4.1.2 Jelly Bean Update Now Available

Yesterday, T-Mobile started to roll out the Android 4.1.2 Jelly Bean update for its Samsung Galaxy S3 version. The owners should be happy because they are luckier than the subscribers of AT&T, who are still waiting for the Android Jelly Bean treatment.

The Android 4.1.2 Jelly Bean for the T-Mobile Galaxy S3 is already available and the users are downloading the software as we speak, according to Tmo News and he users of the XDA-Developers forums, who confirmed it. The last time when the T-Mobile version of the Samsung Galaxy S3 received a software upgrade was back in November when the device was updated to Android 4.1.1 Jelly Bean.

The upgrade is available OTA, and considering that the step from Android 4.1.1 to Android 4.1.2 is not that big, the file is rather small, being 186.72 MB in size. However, it’s better if you find a good Wi-Fi connection in order to download it faster. Also, in case you check for the Android 4.1.2 Jelly Bean update and you don’t it, you can always download and install it through the Samsung Kies desktop application. Another important thing to know is once you install the update your software will reach build number  JZO54K.T999UVDMD5.

Apart from the usual Android improvements, you will receive a lot of extra new features that are listed on the T-Mobile Galaxy S3 support page. Among the new functions that will come along with the Android 4.1.2 Jelly Bean update we can mention multi-window support, auto-pairing through NFC, improved camera features, Sound Balance, Samsung Gallery, Blocking Mode (a function that is included in the Samsung Galaxy S4, as well), and the Easy Mode (also included in the Galaxy S4 list of features). Also, the Android 4.1.2 Jelly Bean update will bring you a feature that is usually present in the Jelly Bean tablet upgrades, namely the Paper Artist application.

Other extra things that need to be mentioned are a new T-Mobile 4G logo and Group Play. Probably the most important improvement brought by the Galaxy S3 Android 4.1.2 Jelly Bean update is the multi-window support, which lets the users run two application on the same screen simultaneously.

So, let’s hear it from the T-Mobile subscribers who own a Samsung Galaxy S3. Have you installed the Android 4.1.2 Jelly Bean update on your handset yet? Let us know in the comment section below.

  • thatdude a-k

    Just did it 30min ago 😉

    • thatdude a-k

      1st one here

  • Tony Conz

    What is sound balance and blocking mode?

  • coleki

    Just installed it this morning, and the multi-window support is pretty slick. Works well, and it wasn’t jumpy, at least for the few seconds I played around with it.

    Burst shot mode on the camera is amazing. I love it.

    • chris carleton

      How do you get the multi Window pull up/down gone off the screens? It’s in the way no matter where it is and it’s driving me nuts!

      • wiggy

        The same way you got it on there just press abd hold the back key

  • Faranak Ghaemi Jafeh

    I am loving it

  • Jimmie Green

    Did it about an hour ago…..

  • Amanda

    How do you make galaxy stop reading you’re messages out loud??? how do i disable this setting???

    • Roger

      Drag your toolbar/notification window down from the top and deselect “Driving Mode”.

  • kurt schmelz

    Just did the update and I like the multi-window function. But I would like to hsve the notification panel upgrade when will that be available.

  • Kevin

    its a big disappointment, liked everything the way it was, the fact they did not tell you that it is not reversible is very annoying. If I wanted tablet features, I’d buy a tablet. Do not like companies forcing this on the the customer, when we pay the bills, good-bye to any future purchases of samsung, android, or any other google product.

  • Vaderlicious

    Just did it but my phone still will not make phone calls – says network not available. Can use Google Talk over wifi. Help!

    • Eon75

      Hi…can’t help but I’m having the same problem. Immediately after the ( automatic ) update this morning, I can no longer make calls, access my contacts, messages, emails, galleries.
      The phone is completely f@%ked. Tried calling 3 from another phone and they completely washed their hands of the problem and blamed Samsung….even though I’m now paying for a phone which can’t fu@%ing make calls!
      The guy from 3 suggested backing up my phone and perform a hard reset….only thing is, I also can’t access my settings menu to change how my phone connects to my computer.

      Any help or suggestions would be greatly appreciated!


  • Chevon Johnson


  • Sabiaman

    They definitely went backwards with this update. It used to be so easy to swipe and make calls, but now they made it very difficult . I am very disappointed with this update.

  • Stephanie

    Recieved it on my s3 this afternoon, love the new features! 🙂

  • rubio alan

    jajajaja excelente samsung…….t-Mobile! actualizacion completa

  • Matt Smith

    Nice!! Love the new features

  • Ronnie

    This update sucks…tmobile eliminated the swipe right to call a contact directly within your contact application…this small feature i used a lot and i hate the update all together because of this…srry…like the multi window but the update sucks….

    • BigRez

      Swipe right to call (and left to text) is still there after the update.

    • richbear

      I think whats changed is you cant slide it from the picture, you have to start the slide after the profile pic.

  • The upgrade is awesome. I downloaded it last night and notice a couple differences. I haven’t played around with them all yet. lol

  • rye27

    Update sucks. Multi media is decent an what ever this tab is on the side of the screen how do you get ride of it suprr obnoxious!

  • I just update my Samsung Galaxy S3. Cool new features. I really like the multi-window function.

  • Whitelightning

    I can no longer log into various web pages via the browser. If the page has an ap it works, but doing so from the web-based version of the page returns log in errors as if I typed in the wrong password.

  • Tony Conz

    Soooo… What is blocking mode and sound balance?

  • I downloaded it last night. So far so good. Awesome.

  • Rich Walker

    WHY CAN I NOT UPDATE?? Having connected to my phone I had no automatic prompt to update. I checked ToolsFirmware Upgrade and Initialisation and I received ‘GT-I9300 does not support initialising’. Can anybody help?