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Install AOSB Android 4.4.2 Project ROM for Galaxy S3 I9300

The AOSB Project is a new Android 4.4.2 Custom ROM that you can install on your Samsung Galaxy S3 using all the info that I’ve listed in this post. Read the entire post and make sure not to skip any steps.

AOSB KitKat 4.4.2 was formerly known as ProBAM, now it can revamped and with tons of CyanogenMod borrowed features and other elements from different popular custom ROMs.

Some of its best features are as following: HALO, RAM Bar, Audio Stereo effect, Incoming Call dialog, Xposed built-in, Custom NAV and Ring bar, LCD Density changing tool, DSP Manager, AppSide Bar, OTA Update, iPhoney Recent app screen and more. More about this release can be read at the developer web page.

Read these guidelines before starting the installation process:

  • use this tutorial only with the Samsung Galaxy S3 model number I9300 – the Exynos CPU model.
    – do not try to flash the files that you will find in this post on any other Android phone.
  • your phone has to be rooted and running the latest build of either CWM or TWRP Recovery..
    – note that in case your device doesn’t have the latest custom Recovery version installed on it, then you cannot flash any new KitKat custom ROMs.
  • the tutorial will tell you to Factory Reset the phone and create a NANDROID Backup for the installed OS before applying Factory Reset. Do not skip those steps.
    – NANDROID ROM Backup sets a restore point for your phone, one that can be used in case your device doesn’t boot in normal mode.
    – Factory Reset allows you to apply a clean installation of AOSB Android 4.4.2 for your Galaxy S3.
    – Factory Reset wipes data from system partition, while it leaves the internal and external storage unaffected.
  • save data from installed apps, SMS and other similar files using the Helium tool for Android.
  • sync Contacts info with your Gmail account.
  • read the entire post, don’t skip any steps and you should be able to complete the tutorial easily without bricking your phone.
  • check the battery charge level of your device and make sure that it is over 50%, so that your phone will not switch off in the middle of the installation.
  • this guide is for advanced users, do not blame us nor the developers in case you brick the phone.

These were all the preparation instructions that you had to read, now you can continue to the next step.

Flash AOSB Android 4.4.2 Project ROM for Galaxy S3 I9300:

  1. Download the ROM zip file from here.
  2. Download Gapps for this ROM from here.
  3. Connect your phone to your PC and then move both zip files to your phone’s internal storage.
    – do not unzip the contents of the archives and disconnect the phone from PC when the transfer is complete.
  4. Power off your phone, then boot it in CWM / TWRP Recovery Mode.
    – if you can’t boot recovery, then read this post to learn.
    > this guide works with both CWM and TWRP.
  5. Create a NANDROID Backup for the installed ROM:
    – CWM: select ‘backup and restore’, then name the file and confirm.
    – TWRP: press Backup, set a name for the file. Swipe to confirm.
  6. Next you need to apply the Factory Reset:
    – CWM: select ‘wipe data/ factory reset’, confirm.
    – TWRP: press Wipe, swipe to confirm.
    > after Factory Reset is applied you should find the ‘Format /system’ option and apply it, too.
    > get to the next step when done.
  7. Install the AOSB Android 4.4.2 ROM for your Galaxy S3 I9300:
    – CWM: select ‘install zip from sdcard’, then ‘choose zip from sdcard’. Find the aosb_kk_1.3.2_i9300.zip file and confirm its installation.
    – TWRP: press Install, find the aosb_kk_1.3.2_i9300.zip file and swipe to confirm installation.
  8. Install Gapps zip after the new ROM is flashed using the same actions as in step 7.
  9. Return to the main custom Recovery screen when done installing all files.
  10. Reboot your phone now in normal mode.
    – note that the AOSB Android 4.4.2 custom ROM first boot will take several minutes to complete, which is why you shouldn’t press any buttons until it is complete.
  11. Use your Google Account info in order to take control over your smartphone once again.

After AOSB Android 4.4.2 ROM is flashed on your Galaxy S3 and it boots in normal mode, you have to power off the device completely. Boot it on after a minute or so and that would be all.

I hope that you found this guide useful and that you’ve managed to update your Samsung Galaxy S3 successfully. If you can’t complete the guide or you have any extra questions regarding its installation, then you can leave a comment below. We will try to come up with viable solutions for whatever problems you encounter while installing the new custom ROM.

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