Finally the latest Official build 8 of Slim Bean Android 4.2.2 ROM is now available for AT&T and T-Mobile Samsung Galaxy S3 SGH-I747/T999 users. Slim Bean custom ROM are one of the popular and lightweight ROMs for Galaxy S 3 devices.The custom ROM is powder with some new features such as real dark Slim theme, Notification drawer and and lockscreen shortcuts, Custom Quick Settings Tiles, SlimPIE navigation and lots more. The current Custom ROM is based on the Android 4.2.2 Jelly bean firmware and with many other customization. If you are the Galaxy S3 I747/T999 [AT&T/T-Mobile] user and want to try this Custom ROM on your device, then here is the complete guide which help you to flash the Custom ROM on your device.
Remember this one is the Custom ROM and not the official ROM from the Samsung and still going through development stage. So there are some chances that you can face some bugs on your device. To Flash this ROM on your device your need a Rooted device with Custom Recovery Installed such as TWRP or CWM recovery. You can’t flash this ROM from your Stock Recovery. So let’s take a look how to install custom ROM on your Galaxy S 3.
Pre-requisites and Requirements
a) Before following the Installation do take the Full Backup of your Android Apps, SMS, Contacts, Call Logs, Bookmarks. Looking for more ways to Backup your android device click here. So in case if you lost some of your important data and files in the update process, then you can easily restore them from your backup file.
b) After that Enable USB debugging mode on your device, read the guide here how to enable USB debugging mode.
c) Make sure that your Galaxy S3 I747/T999 [AT&T/T-Mobile] battery is full charge or near about 60-70% battery level.
d) Download the Latest Galaxy S3 I747/T999 [AT&T/T-Mobile] USB Driver on your PC and install it to start the root process. You need to install these driver on your desktop to connect your device with the computer to follow the root process.
After following the above mention steps follow the below mention guide one by one to update your device with Slim Bean Build 8 Android 4.2.2 ROM.
How to Android 4.2.2 Jelly Bean Based Slim Bean Build 8 ROM on Galaxy S3 I747/T999
Hope you followed all the above mention instructions on your device very carefully. NOTE- The guide is only for the Galaxy S3 I747/T999 [AT&T/T-Mobile] users, so don’t try this method on any of your another android smartphone otherwise you will brick you phone. Now follow the below mention tutorial to flash Custom ROM on your device, read each and every step very carefully and don’t miss any step on your device.
Step 1. Download the Slim Bean Build 8 ROM for Galaxy S3 I747/T999 on you desktop and don’t extract the folder on your desktop.
Step 2. Now Download Google Apps [Slim Bean Gapps] and again don’t extract the folder on your desktop.
Step 3. Now both the important files are saved on your desktop. Connect your device with the computer via USB cable and copy both the files on your the SD card of your smartphone. Important: Don’t extract any file.
Step 4. Once both the files are transferred to your device, disconnect the phone from the computer.
Step 5. Now Switch of your android phone and boot the device in Recovery Mode. To do this press and hold the Volume Up, Power and Home buttons together until the Samsung logo comes up, leave all three buttons for half a second and hold them again. You will see custom recovery screen soon. Or read our guide How to start an Android Phone into Recovery Mode
Step 6. Now take the nandroid backup of your ROM, to do this select “Backup and Restore” from recovery and backup the ROM to external storage. After that go back to main recovery menu after backup process done. It’s a important task, if the new ROM not work for you then you can easily restore your previous ROM backup with this method.
Step 7. Now Do these step from the recovery “wipe data/factory reset” “wipe cache partition” and then go to Advanced> “wipe dalvik cache” and “wipe battery stats”. When all done, it’s safe to move into next step.
Step 8. Now form the recovery menu select the “Install Zip from SD card” after that choose zip from sdcard” and select the ROM (File that you downloaded on Step 1). First install the ROM and after that Google Apps package (File that you downloaded on Step 2) with the same way you install the ROM.
Step 9. Now from the Main menu go to “advanced” and “wipe dalvik cache” again. Now in the end select “reboot system now” from the main menu.
Step 10. Now the device will reboot and take some time to reboot and setup the custom ROM on your device.
Congratulations, Now the custom ROM is successfully installed on your Galaxy S3 I747/T999 [AT&T/T-Mobile]. In case at the time of restart your device stuck on Android loop or stuck on Android boot screen, then follow this guide to come out of Android loop.