AOSP NeatROM version 2.4.1 based on Android 4.4.2 KitKat has been released for Samsung S 3 GT-I9300. The credit for the timely release goes to SALE, he is a ROM developer and a recognized XDA contributor.

Sale, has released AOSP NeatROM (v2.4.1) featuring Android 4.4.2 KitKat for Samsung's 2012 flagship Smartphone, Galaxy S3 bearing model number GT-I9300.

NeatROM is complied from the latest version of SlimKat, which is being released by SlimROM’s team. So lets move towards the feature of AOSP NeatROM

Features

The Real Dark SlimNotification drawer ShortcutsFull hardware key rebindingKeyboard rotationNova LauncherSuperuserDarker Camera - color filter options, GPs indicator, picture quality, smart capture, shutter soundDarker GalleryPhasebeam Live WallpaperWifi country codeMediascanner behavior on bootVolume key cursor controlShow permanent, enter key on the keyboardIME selector notificationAuto keyboard rotation featureSystemwide blacklist support for calls and sms/mmsPattern size customizingLock before unlock the new wayLockscreen shortcutsFully revamped lockscreen target optionsStart widgets maximized on the lockscreenEnable carousel animation on the lockscreenEnable/disable camera widget on the lockscreenFull customizable low battery warningWake up in chargeVolume rocker wakeVolume rocker music controlCRT animation the new way with new animation as wellFully customizable auto brightnessDisplay rotation options (0, 90, 180, 270)Fully customisable volume panelPower connectivity alertLess frequent notification soundsAscending ringtoneControl safe headset warningMute Camera shutter soundQuiet hours new extended versionMute, Volume adjusts the soundSlimCenterFully global menu customizationFully revamped navigation bar and navigation ring customizationsStatusbar brightness controlFull Clock and date customization on status barBattery iconsQuick settings style optionsQuick pulldown for quick settingsEasy full swipe access between notification drawer and quick settingsWifi access point is shown in notification drawerHide carrier label on notification drawerNotification drawer shortcutsNotification transparencyNotification drawer and quick settings, background as well with tablet supportFully customizable quick settings the new way with new included music tiles and featuresBattery tile, new click/longpress behaviorAllow to disable Quick Settings completelyOption in Dev Set to customize the device hostnameSystemUI - double tap to sleep gestureIPV6 tethering supportAllow applications to override power keyDeskClock - back flip and shake actionsNavigation barGlobal menu - Expanded desktopWakeup OptionsEnable/Disable Root (Enabled by default)Fixed StatusBar Back ButtonEs File Explorer

And here is how you can install AOSP NeatRom Android 4.4.2 KitKat on Galaxy S3 GT-I9300

Disclaimer: This guide will be using ‘Odin’ as a tool to flash the official firmware on your Galaxy S3 GT-I9300. During the process, you might lose all your existing installed apps and personal settings. It is therefore necessary for you to follow the guide carefully. Also, please, do mind that this tutorial is only for Install AOSP NeatRom Android 4.4.2 KitKat on Galaxy S3 GT-I9300. Don’t try this guide in any other Android device.

Prerequisites to Install AOSP NeatRom Android 4.4.2 KitKat on Galaxy S3 GT-I9300:

Download and install USB drivers for Galaxy S3 GT-I9300Enable USB debugging mode from developer menu.You should have a custom recovery tool like TWRP or CWM installed on your deviceBackup any important data before going forward for the tutorial.Ensure that your Galaxy S3 GT-I9300L carries more than 70% of charge.

Download Files

Download ROM FileDownload Google Apps (Gapps)

How to Flash ROM on your device

First step is to reboot your phone into Recovery mode, by pressing and holding down the Volume Up button, alongside Home and the Power button, until the screen flashes, release the three buttons then. After a few seconds of that, the phone will enter recovery modeOnce in the recovery mode, take a NAndroid backup of your existing ROM. This is necessary, to enable you to recover your current ROM install, just in case the new ROM does not perform according to your liking. In order to perform a backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup is completeOnce done, select wipe data/factory reset, select ‘Yes’ on the next screen to confirm your action. Wait for a few minutes until the phone wipes your data. Once complete, go back to CWM recovery menu and Wipe Cache Partition and then Wipe Dalvik Cache.Select install zip from sdcard, then select choose a zip from SD card. That you copied earlier and select it by pressing the Power button. Confirm installation by selecting Yes. Install the said zip file on the next screen. The ROM installation will begin.Once, the phone finishes installing the ROM, you need to re-do step 7, but choose Gapps .zip file instead of ROM zip to install the Google apps package.When GApps get installed, go back to the main recovery menu and select reboot system now to reboot the phoneThat’s it