Now the leaked Android Jelly Bean 4.1.2 is stable enough to use as your daily driver.It practically has very less bugs which you would encounter rarely.So this is good firmware build we must say.Thanks to devs at XDA forums this has been possible.
Now I know you guys can’t wait to play with the new Android 4.1.2!!So lets not wait any further,we have come up with a noob proof detailed tutorial to Update / Install Android 4.1.2 Jelly Bean AT&T Galaxy S2 Skyrocket SGH i727 .
Jelly Bean 4.1.2 Galaxy S2 Skyrocket SGH i727 AT&T
Before beginning with the procedure to Install Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket SGH i727 you must know that once the procedure in the tutorial is followed your warranty stands void. The given method is risky and can cause your device to brick. It is therefore recommended that you follow the procedure carefully and perfectly. The processes that you carry out on your device are solely at your risk. We do not take responsibility for any damage to your device.
Lets have a look at the essential Pre Requistes:
1.Firstly you must ensure that you have rooted and installed ClockWork mod (CWM) on ATT Galaxy S2 Skyrocket SGH i727
Tutorial to Root Galaxy S2 Skrocket Here
2.Minimum 60% of your phone battery must be charged.
3.Back up your phone data.
4.Make sure that you have installed drivers on your computer.
5.Sync your contacts with gmail
6.Enable USB debugging mode(Settings –> Applications –> Development –> USB Debugging)
Following is the Detailed Method to Install Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket SGH i727 :
Now firstly, you need to download the Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket file.
Now there are 2 versions, one is the odexed one and the other is the de odexed one.In deodexed one you will be able to flash any other 3rd party mods.So chose accordingly.
Here is the Odexed Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket.
Here is the Deodexed Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket.
After having done with downloading of the above mentioned file , you need to copy the file into you internal SD card.
Now you need to switch of your device Galaxy S2 Skyrocket SGH i727. Now the first thing to do after this is boot into the CWM Recovery. We will have to use the 3 button combo.
Now to work around in the CWM recovery , you need to make use of the following keys :
To move Up/down use Volume Up /Volume Down Button respectively
To open a selected option, use Home/Power button.
Now there are series of steps you need to perform before you begin your actual process of installation of Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket version.
Select and open the ‘Backup and Restore’ menu from the main menu and do the Nandroid Backup(select yes) to restore your files and previous ROM if something goes wrong with the New ROM. Just to be safe.
In order to have practically no errors or bugs whatsoever , you need to wipe the data and factory reset your device.
So go to the ‘Wipe Data /factory reset’ and ‘Wipe Cache partition’ and then perform these processes
Now go to the Advanced menu , you will see a ‘Wipe Dalvik Cache’ menu , select and click on yes to do it.
Now to Install Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket, go to the ‘Install Zip from Sd Card’ menu , now select and open ‘“choose zip from sdcard’ menu , browse for the Android 4.1.2 Jelly Bean file and then select it and select yes to begin the process to install Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket SGH i727 version.
Now,repeat the ‘Wipe data/factory reset’, ‘Wipe Dalvik Cache’ and “Wipe Cache partition” to. Now opt for “reboot system now“ option and wait for your phone to get Booted in the Android 4.1.2 Jelly Bean Galaxy S2 Skyrocket.Normally it will take 2-3 mins for the first boot.
Step 8 : Now this firmware isn’t rooted one.To root it you need to install the root file via CWM.
Now when you are about to install the file, you don’t need to wipe data or anything.Just install it.
Now after having done with it, you need to install SuperSU or superuser APK from google play.
Thats it.Your Skyrocket is rooted again