How To Update T-Mobile Galaxy S 4G T959V To Android Jelly Bean 4.2.1 | CM 10.1 Rom

Update T-Mobile Galaxy S 4G T959V To Android Jelly Bean 4.2.1

How To Update T-Mobile Galaxy S 4G T959V To Android Jelly Bean 4.2.1 | CM 10.1 Rom

Being a smartphone user, you will always love to have the latest OS on your phone. However Galaxy S 4G T959V users are quite unlucky to get Froyo 2.2 installed on their phone. However the developers @ XDA are smart enough to let Galaxy S 4G users to update their phone to the latest CM 10.1 Rom which gives an amazing experience of Android Jelly Bean 4.2.1 .

Below tutorial will allow you to update your T-Mobile Galaxy S 4G T959V to Android Jelly Bean 4.2.1, provided that you follow each and every step carefully.

Before You Proceed–>>

  • This tutorial is strictly intended for T-Mobile Galaxy S 4G with model number T959V. Using this tutorial on any other device or any other variant of T-Mobile may brick your device.
  • You need to have a ClockWorkMod Recovery image installed on your phone.
  • Your phone must be running on Android 4.0 ICS or higher custom Rom.
  • Ensure that you have USB drivers for your device installed on your PC. If you don’t then click here.
  • Enable USB Debugging mode. Go to Options > Applications > Development > USB Debugging.
  • Backup all your personal information on your device.
    Use AppBak to backup all your apps.
    Use SMS Backup and Restore to backup messages.
    You can backup your contacts using gmail .
  • Charge your device battery with atleast 75% of power.

How To Update T-Mobile Galaxy S 4G T959V To Android Jelly Bean 4.2.1 | CM 10.1 Rom

  1. Initially download CyanogenMod 10.1 Rom file and Google Apps Package on your PC.
  2. Connect your device to your PC via USB cable.
  3. Copy the downloaded file on the internal SD card of your phone.
  4. Now turn off your phone and boot your phone into recovery mode.
  5. Now to get in the Recovery Mode, press and hold Volume Up+Home +Power buttons together. When Samsung Logo appears, release the Power button but keep holding Volume Up and Home button.
    Note-You can use Volume Buttons to navigate and Power button to select.
  6. Now select ‘ Wipe data/Factory reset and confirm on the next screen by pressing power button.
  7. Now select ‘ Wipe cache ‘ and confirm by pressing power button.
  8. Now select ‘ Advanced –> Wipe Dalvik cache and confirm by pressing power button .
  9. Then select ‘ Flash ZIP From SD Card ‘ and then select Choose ZIP From SD Card and browse to the file that you copied to your device’s SD card in step 3. Select the file and confirm by pressing power button. The installation will start.
  10. Once the installation is finished, install the google apps package by following step 9.
  11. When you finish installing google apps package, select Go back and select Reboot system now.
  12. Now your device will boot with the whole new Look and feel of Jelly Bean 4.2.1.

Congratulations ! You have successfully updated your T-Mobile Galaxy S 4G T959V  to Android Jelly Bean 4.2.1 !

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About Acquin Dmello

Acquin is a Computer Engineering student, web developer, SEO learner and a dedicated Blogger. He specializes in Programming Web Applications and loves tweaking with Smartphones. Follow him on Twitter.

  • Vasya

    Hello Acquin, thanks for posting this detailed instruction on how to update to JB4.2.1, but I have a question here. You said: Your phone must be running on Android 4.0 ICS or higher custom Rom. My phone “Samsung T959v” never been rooted and runs on GB 2.3.6. Can I do all the steps and be able to update it to JB 4.2.1? Or should I root it first and get ICS 4.0 or higher and then get JB 4.2.1? Can you please advise.

    Thanks, V.

    • Roque

      This is pretty weird i know. First porting to ICS 4.0 and then again porting to JB 4.2.1 don’t make sense. It happens the same. However, the developers suggest us to do the same. So we have no option.
      Just Root your phone, install a ClockworkMod Recovery and the install ICS based Custom Rom and then Update your phone to JB 4.2.1 using this Rom.

  • Vasya

    Hey Rogue, thanks for the advise. By any chance do you have any detailed instruction on how to root Samsung T959V? I just don’t want to screw it up and brick my phone…
    Thanks again…

    • Roque

      I will surely let you know when we are done with post of How To Root Samsung T959V.

  • hackerweeg

    hey… i installed it successfully but the only bug i found is that the wifi does not works… i tried to get updates for it but none was available, so i had to revert to ICS and i am now waiting for that bug fix and then i will upgrade again.. but Thanks is works greats except for the wifi bug

    • Roque

      Thanks for the appreciation. We have your email id with us. As soon as the latest update of this Rom comes out, we will surely notify you.

    • bhajit

      Hi, this is great ROM. I was looking all over to get JB for my T959V…I installed it toat, but facing same wi-fi issue. Please notify if you fixed this bug…appreciate the great work! thanks again for the wonderful ROM