How To Install CM10.1 Android 4.2.1 Jelly Bean on T959V Galaxy S 4G

Samsung Galaxy S 4G T959V that launched back on 2011, is a smartphone that leaved with Android 2.2 Froyo by T-Mobile despite having good hardware spec. However, good thing is Android developer community continuously trying their best to push latest Android 4.2.1 Jelly Bean to all capable devices. As a result we now have an unofficial CM10.1 custom ROM that based on latest Android 4.2.1 Jelly Bean for Samsung Galaxy S 4G T959V. Samsung Galaxy S 4G is powered by a 1 GHz Cortex-A8 processor as well as have 512MB of RAM which make it capable to run Android 4.2.1 Jelly Bean. So, if you feel bored with outdated Android 2.2 Froyo and already running on Android 4.0.4 ICS or higher custom ROM then you can try this custom ROM CM10.1 that can upgrade your Samsung Galaxy S 4G T959V to latest Android 4.2.1 Jelly Bean.

Few notable Android 4.2.1 Jelly Bean features are multi-user support, gesture typing, new quick settings option, lock-screen widget, new camera app, photo sphere, improved Google Now, new daydream feature, miracast display and more.


Note: This CM10.1 Android 4.2.1 Jelly Bean based ROM is a beta build and may contain bugs and issues. All issues will be resolved as development progress.

Known Issues:

  • WiFi stays on searching for networks
  • Camcorder now records but videos don’t play back correctly


This tutorial is only for Samsung Galaxy S 4G, model number T959V. Don’t try this guide in any other Android device. Check your device’s model number in: Settings » About phone. Also, we are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. Although, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.

Pre Requisites:

Backup your data first using below mentioned instructions, so that if you lost any data you can recover it easily.

SMS & Call LogUse SMS, MMS & Call Log Entries Backup & Restore App
Contacts & SettingsUse Android default backup options.
Images, Songs, Videos, Files – Copy to Internal/External SD card.
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names


  1. Make sure your device have at least 80% battery power. [How to Check Battery Percentage in Android Phones]
  2. Backup your EFS Folder. [Guide]
  3. You already have USB Driver Installed for Samsung Galaxy S 4G T959V in your PC. [Download USB Driver]
  4. Make sure USB Debugging is enabled. [Guide]
  5. Your device have ClockworkMod Recovery Installed [Guide].

If you done everything that we mentioned above then you are ready to move the next page of this guide where we compile an easy to follow step-by-step guide on how to flash Android 4.2.1 Jelly Bean preview ROM for Samsung Galaxy S 4G T959V.

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