CrystalROM Android 4.4.2 KitKatis based on official Samsung N7100XXUFNE1 firmware. Ported from Samsung Galaxy Note 2 N7100, CrystalROM is pre-rooted and de-bloated to give you an amazing level of performance. Following is a list of features that this custom firmware offers. Read on to learn how toinstall CrystalROM Android 4.4.2 on Galaxy S3 i9300.

CrystalROM Android 4.4.2 features:

Base – N7100XXUFNE1 (N7100 Port)426MbFirmwarecleared of debris (Applications, Library, etc)edited feature.xmlbuild.prop tweaksInit.d tweaks and sysctl% batteryAdvanced Menu rebootCall RecordingBootAnimation from SGS5Dialer in dark colors

Pre-reqs to install CrystalROM Android 4.4.2 on Galaxy S3 i9300:

Create abackupof all important data in your Galaxy device.

Download and install USB drivers forSamsung Galaxy S3in your computer.Enable USB debugging option by pressingMenu>Settings>Applications. Navigate and tap onDeveloper Optionsto ensure thatUSB Debuggingis enabled.Make sure that recovery tool likeClockworkMod recoveryis installed.Ensure that your Samsung Galaxy S3 i9300 carries more than 80% of charge.

Guide to install CrystalROM Android 4.4.2 on Galaxy S3 i9300:

Files required:download the CrystalROM Android 4.4.2custom firmware fromhere; also download theGoogle Apps. Save both files on PC.

Here are the steps to install CrystalROM Android 4.4.2 on Galaxy S3 i9300:

Connect your SamsungGalaxy S3 i9300to your computer using USB cable and copy the downloaded files to the SD card of your Galaxy device.Disconnect the connection with PC and turn your GalaxyS3 off.Boot in to custom recovery mode: press and holdVolume Up, Downand thePowerbuttons simultaneously untilSamsunglogo shows up. Leave the keys for half a second and hold again. UseVolumekeys to scroll andPowerbutton to select -alternatively you can useQuick Boot appto reboot your Android device in recovery mode.Now perform Nandroid backup of your current ROM: selectBackup and Restore>Backup. Go back to main recovery menu after backup process is done -very important step to restore back to current OS.Data wiping tasks: selectwipe data/factory reset>Yes. It will take a few minutes; once done, selectwipe cache partition.Next tap onAdvance>wipe Dalvik Cacheto wipe Dalvik cache data too.Selectinstall zip from sdcardfollowed bychoosezip from sdcard. Locate the Android 4.4.2 KitKat based CrystalROM custom ROMfile copied earlier and select it. Tap onyesto confirm installation and wait for the ROM installation to be completed.Once installation process is finished successfully, repeat the above step but chooseGAppsfile instead to install the Google apps package on your SGS3 i9300.Return to main recovery menu now and selectreboot system nowto boot up into the latest Fusion-SP custom firmwareforSamsung GalaxyS3. It will take a bit of time during the first boot, so kindly be patient.Ta da! This was how to install CrystalROM Android 4.4.2 on Galaxy S3 i9300!

How to restore:If you want to return to previous OS on your SGS3, boot intorecovery, selectbackup and restorethen restore your previous ROM by selecting it from the list.