Install SlimBean Build 4 Android 4.2.2 Jelly Bean on T-Mobile Galaxy S3 T999 – Custom Rom

Apr 25, 2013

The SlimBean team has added support for the T-Mobile Galaxy S3 T999 in the Build 4 of SlimBean Android 4.2.2 Jelly Bean ROM. This build is based on Android 4.2.2 Jelly Bean ROM and will allow you to enjoy the latest iteration of Android 4.2.2Jelly Bean on your T-Mobile Galaxy S3 T999.

The SlimBean Build 4 comes with features adding upon the good work done with Build 3. Following are some of the key features of Build 4 of this custom ROM.

  • Auto-Hide Statusbar
  • Higher Camera Resolution
  • Camera Sound Toggle
  • SlimIRC
  • Blacklist function
  • Sound Recorder
  • SlimPIE

Before installing this ROM, it is pertinent to mention that ROM flashing can cause your phone to brick. While, the majority of ROMs today prevent your device from getting bricked, it is still advisable to practice caution. Because it will be your responsibility in the event of your device getting bricked.


  1. SlimBean Build 4 4.2.2 Jelly Bean ROM For T-Mobile Galaxy S3 T999 [File: 2437-slim-d2att-4-2-2-build-4-2-official]
  2. Google Apps [File:]

Install SlimBean Build 4 Android 4.2.2 Jelly Bean on T-Mobile Galaxy S3 T999 – Custom Rom

  1. Connect your T-Mobile Galaxy S3 T999 with the PC, via USB cable.
  2. Download the afore mentioned SlimBean Android 4.2.2 Jelly Bean Build 4 file and copy it to the SD card of your phone.
  3. Disconnect your phone and switch it off. And make sure that you wait 5-6 seconds to complete the power down cycle.
  4. Now, you will boot the Google T-Mobile Galaxy S3 T999 into recovery mode, by pressing and holding down the Volume Up button, alongside Home and the Power button, until the screen flashes, release the three buttons then. After a few seconds of that, the phone will enter recovery mode.
  5. Once in the recovery mode, take a Nandroid backup of your existing ROM. This is necessary, to enable you to recover your current ROM install, just in case the new ROM does not perform according to your liking. In order to perform a backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup is complete.
  6. Once done, select wipe data/factory reset, select ‘Yes’ on next screen to confirm your action. Wait for a few minutes until the phone wipes your data. Once complete, go back to CWM recovery menu and Wipe Cache Partition and then Wipe Dalvik Cache.
  7. Select install zip from sdcard, then select choose zip from sdcard. Now, locate the 2437-slim-d2att-4-2-2-build-4-2-official file that you copied earlier in Step 2 and select it by pressing Power button. Confirm installation by selecting Yes. Install the said zip file on the next screen. The ROM installation will begin.
  8. Once, the phone finishes installing the ROM, you need to re-do step 7, but choose file instead of ROM zip to install the Google apps package.
  9. When GApps get installed, go back to the main recovery menu and select reboot system now to reboot the phone and boot up into customized Android 4.2.2 Jelly Bean ROM SlimBean Build 4. The first boot will take time, so be patient!

You are now running latest SlimBean Build 4 Android 4.2.2 Jelly Bean ROM on T-Mobile Galaxy S3 T999. If you are facing any issues, feel free to mention it in our comments section.