Samsung Galaxy S3 I9300 now gets unofficial android 4.4.2 Kitkat custom ROM zip file installation with latest Nexus 5 ROM features. Samsung Galaxy S3 I9300 is a big flagship android smartphone model in 2012 calendar year released with stock firmware of Android 4.0 Ice Cream Sandwich OS and recently got official android 4.3 jellybean firmware update and need to wait for android 4.4 Kitkat firmware update from samsung official. Hope this below installation guide helps to update your Samsung Galaxy S3 I9300 to Android 4.4.2 Kitkat firmware version with Supernexus custom ROM.
Supernexus custom ROM Features:
Android 4.4.2 KitKat (KOT49H – Android-4.4.2_r1)
Latest CM Kernel
Nexus 5 UI theme
All KitKat features and apps (Nothing excluded from AOSP)
No Visual Changes!
Stock KitKat look and feel
Deodexed
Rooted (Super SU)
BusyBox Installed
No 3rd Party App
ZERO Bloatware
Android Source Code vastly improved and optimised (i.e. Bionic, Dalvik, Webkit, Framework, libcore, SQlite etc – Thanks to CAF)
Init.d Support
Rsync Support
UserInit Support
Bash & Nano Support
Native SIP/VOIP Support
OpenSSH Support (ssh, sshd, scp, stfp)
HSPA+ Support
OpenVPN Support
Ad-Hoc Network Support
exFAT and NTFS-3G support
EXT4 File System Optimisations
Large APN & SPN List
SELinux enabled
Framework Features:
-Extended Power Menu (Reboot, Recovery, Download & Screenshot Options)
-Tweaked Animation Values Of Progress Spinners (Silky Smooth Loading Spinners)
-Options for switching between USB Mass Storage and MTP/PTP (On Specific Devices)
Browser Features:-
-Increased Maximum Tab limit from 16 to 64
-Option To Close All Tabs With One-Click
-Allowed Any Type Of File To Be Downloaded
Phone Features:-
-Noise Suppression
Miscellaneous Features:
-Allowed Installation of Apps From Unknown Sources By Default
-Disabled Data Roaming By Default
-Removed Google’s Software Updates Option from Settings
-Enabled Gesture Input By default
-Emoji Enabled by default
-Hardware Information of the device (Settings>About Device>Hardware Information)
Disclaimer:
The Samsung Galaxy S3 I9300 Custom ROM installation process may end up in no results or negative results too that means device software damage as well mega device hangs or startup problem. So it’s advised to you that apply this installation procedure at your own risk and the below procedure only for educational purpose. We shall not be responsible for any damage to your device.
Prerequisites:
Before entering Samsung Galaxy S3 I9300 updates process,
Take a Complete backup because of any data and apps lost during installation.
SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log – Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names”
Already installed CWM Recovery mode (CWM Touch 6.0.3.2+ or latest TWRP)
Enable the USB Debugging Mode in your Samsung Galaxy S3 I9300 device follow this step “Settings > Applications > Development > USB debugging”.
Minimum 75% battery need before start your work
Downloads:
ROM: SuperNexus-4.0-i9300-BUILD1.zip (File Size: 164MB)
Google Apps: gapps-kk-20131209.zip (File Size: 93MB)
Step to install Android 4.4.2 KitKat to Samsung Galaxy S3 I9300
Download all above listed Google Apps and SuperNexus ROM ZIP files to your computer or laptop and transfer zip file to Samsung Galaxy S3 I9300 root of your SD card
Switch OFF your Samsung Galaxy S3 I9300and Enter CWM Recovery by pressing Volume Up +Menu + Power buttons together and do full wipe (everything except SD card)
From Recovery Menu, use Volume Up or Down button for navigation
Go to choose from SDcard or install ZIP from SD card and install or flash SuperNexus-4.0-i9300-BUILD1.zip in ClockworkMod Recovery and install Google Apps too.
After ZIP file got installed DO A DATA WIPE / FACTORY RESET (Wipe dalvik cache) (otherwise your device will be stuck at boot)
Wait for 3 to 4 minutes and go to main menu and select ‘reboot system now’.
That it, your Samsung Galaxy S3 smartphone now ready to reboot at Android 4.4.2 Kitkat version with Supernexus 4.0 ROM.
After rebooted check your device android version by checking Setting à About phone and your model number GT-I9300 shows android version: 4.4.2, Baseband Version: I9300XXUGMK6, Kernel Version: 3.0.64-CM-gb 199325, SuperNexus Version: 4.00i9300-Build1, Build number: KOT49H as shown in image.