AOKP team has launched the official build based on Android 4.4.2 for your Galaxy S3 phone. Use this post if you want to learn how to successfully update your device without bricking its firmware.
More info about this release can be found at the AOKP.co website here. Remember that this is not an official update from Samsung, but a custom ROM that might pack some bugs and errors.
Before starting the installation process of this new ROM you will first have to take a look at the preparation guide below:
- this is a guide that works only with the Samsung Galaxy S3 model number I9300 -- it is the Exynos model.
- do not attempt to update any other phone or tablet with the files that you will find in this post.
- Your device has to be rooted and running the latest CWM Recovery image.
- TWRP will work too.
> note that your installed custom Recovery has to be updated to its latest version, as otherwise you will not be able to flash any new KitKat builds.
- a full NANDROID Backup has to be applied for the currently installed ROM, this will set a restore point for your device.
- such step is listed in the tutorial guide, so you won't skip this process.
- Factory Reset is also needed, so that you will be able to flash the new ROM over a clean system.
- the Factory Reset process will wipe all data that is stored on your phone's system partition, while it leaves the internal and external sdcards unaffected.
- Backup data from your installed applications using the Helium utility for Android devices.
- enable USB Debugging from Developer Options menu.
- this guide is for advanced users, do not skip any steps and make sure to read the entire tutorial in order to complete the installation at your first attempt.
- check the battery charge level of your phone, make sure that it is over 50%, so that it won't switch off in the middle of the installation process.
- now that you know all of the above you can continue to the next part of this article and learn how to flash a KitKat custom ROM for your device.
Note that this is not an official Samsung update, but a custom ROM that should be used for testing purposes only.
How to flash AOKP Android 4.4.2 Nightly ROM for Galaxy S3 I9300:
- Download the latest build from this link here.
- Download Gapps for this ROM from here.
- Connect your phone to your computer and then move both zip files to your device's internal storage.
- Power off your device, then boot it in CWM Recovery Mode.
- recovery mode for Android can be booted like this.
- First you need to create the full NANDROID ROM Backup:
- select 'backup and restore', name the file and confirm process.
- Now you can apply the Factory Reset:
- select 'wipe data/ factory reset' option, confirm.
- Next, install the AOKP Nightly 4.4.2 ROM build on your Galaxy S3:
- select 'install zip from sdcard', then you have to select 'choose zip from sdcard'.
- find the new ROM zip and confirm its installation.
> don't press any buttons until the process is complete.
- Install Gapps zip after the new ROM is flashed. Use the same options as in step 7.
- Get back to the main custom Recovery screen and reboot the phone.
- note: the first boot process of AOKP Android 4.4.2 ROM takes a while to complete, which is why you shouldn't press any buttons until its home screen appears.
- Use your Google Account info in order to take control over your device once again.
These were all the steps that you had to take in order to complete the installation of AOKP Android 4.4.2 Nightly ROM for your Galaxy S3 I9300. I hope that you did manage to complete the installation at your first attempt and that now you've already started to test the new functions and features added by AOKP.
If the first boot process of AOKP Android 4.4.2 ROM takes too long to load all the files or the Galaxy S3 enters into a boot loop, then you will need to repeat the entire tutorial once again. Make sure that you don't skip any steps and that you will apply Factory Reset. Also, it would be best if you would apply Format /system option too.
NOTE: if you don't like the new ROM, then you can restore the phone to its previous OS using the backup file of the previously installed ROM. Use the comments field if you need any extra help with the tutorial.