Update T-Mobile Galaxy S3 SGH-T999 AOKP Android 4.2.2 Jelly Bean Custom ROM | JB-MR1 Build 4

GalaxyS3_AmberBrown

AOKP (Android Open Kang Project) Android 4.2.2 for T-Mobile Samsung Galaxy S3 SGH-T999 is now available for download. Undoubtedly, AOKP is still one of the best clean and fast custom ROM for android devices with pure Android source code. AOKP has updated to AOKP android 4.2.2 MR1 build 4 and start releasing to multiple Nexus devices as well as HTC and Motorola devices. T-Mobile Samsung Galaxy S3 SGH-T999 is one of them, let’s check out what’s new with AOKP MR1 build 4 on T-Mobile Samsung Galaxy S3 SGH-T999.

Disclaimer

It’s always risky to modify your phone and be warned that a failure may brick your phone. In order to keep your phone safe, please read carefully every single line of the tutorial and follows the steps exactly. We are not responsible for any damage to your device. By doing this, your warranty may void.

Compatibility

The tutorial and guide below is only compatible to T-Mobile Samsung Galaxy S3 SGH-T999 model. It will not compatible to other devices.

Check phone model – Go to Settings -> About Device -> Model Number

Requirements

  1. Windows-based PC
  2. T-Mobile Samsung Galaxy S3 SGH-T999. How To Root Guide
  3. Download and install USB drivers on PC. Download Samsung USB Driver for Windows and Samsung Kies.
  4. Enable USB Debugging on your device. How to Enable USB Debugging Mode on Android Device.
  5. Backup your personal data on phone to PC to ensure you keep a copy of your personal data (SMS, MMS, Contacts, Internet Settings, Photos and etc). How to Backup Personal Data On Android Device.
  6. Make sure your phone is charged to 50% to avoid interruption during flashing.How to Check Battery Level On Android Device.

Download

  1. AOKP Android 4.2.2 Jelly Bean for T-Mobile Samsung Galaxy S3 SGH-T999 (aokp_d2tmo_jb-mr1_build-4.zip,153MB) – Development page
  2. Google Apps Package (gapps-jb-20121212-signed.zip, 90MB)

Instructions: (From Custom ROM)

  1. Make sure you have follow steps above and enable all the necessary features before start.
  2. Do a Nandroid backup in CWM/TWRP recovery in case you need for restoration. (Optional)
  3. Connect your device to the computer via micro USB cable.
  4. Copy and paste the downloaded ***ROM***.zip and ***Gapps***.zip to your phone internal SD card.
  5. Turn off your phone and disconnect from USB cable.
  6. Press and hold the Power + Volume Up + Home Button to enter CWM/TWRP Recovery.
  7. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade from your previous ROM version. For CWM recovery, use Volume key to navigate in Recovery Mode. For TWRP, use touchscreen to navigate in Recovery Mode
  8. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  9. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  10. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ***ROM***.zip and click Yes to install.
  11. Back to main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ***Gapps***.zip file and click Yes to install.
  12. After the installation completes, go back to recovery’s main menu.
  13. Select reboot system now to reboot the phone.
  14. For first boot up, it normally takes longer time. Please wait patiently.

Instructions: (From Stock ROM)

  1. Root and install CWM/TWRP recovery. How To Root Guide
  2. Download root checker from Google Play to check your root status.
  3. Press Power + Volume Up + Home button to enter recovery mode. Check whether CWM/TWRP recovery is successfully installed.
  4. Connect your device to the computer via micro USB cable.
  5. Copy and paste the downloaded ***ROM***.zip and ***Gapps***.zip to your phone internal SD card.
  6. Turn off your phone and disconnect from USB cable.
  7. Press and hold the Power + Volume Up + Home Button to enter CWM/TWRP Recovery.
  8. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade from your previous ROM version. For CWM recovery, use Volume key to navigate in Recovery Mode. For TWRP, use touchscreen to navigate in Recovery Mode
  9. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  10. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  11. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ***ROM***.zip and click Yes to install.
  12. Back to main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the ***Gapps***.zip file and click Yes to install.
  13. After the installation completes, go back to recovery’s main menu.
  14. Select reboot system now to reboot the phone.
  15. For first boot up, it normally takes longer time. Please wait patiently.

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