Another Jelly Bean build for Galaxy S3, now you can refresh your Galaxy with Jelly Bean with no trouble, dress up your Galaxy S3 with SuperNexus custom ROM that gives you Vanilla Android experience, it’s very stable custom ROM. It’s completely AOSP ROM that based on Android 4.1.1 Jelly Bean, which means, it will give you fully stock Jelly Bean experience, thanks to recognized XDA developer and contributor Faryaab.
The SuperNexus contains no bloatware but has number of useful apps such as new CyanogenMod kernel, all Jelly Bean features and apps like the Google Now app, smarter keyboard app, new notification bar, improved camera app, new search features and more, as I said above that the ROM gives you stock Jelly Bean look to your Galaxy S3, it other words, it will turn your Galaxy S3 into Galaxy Nexus running Jelly Bean.
It’s pre-rooted custom ROM that already has Deodexed and BusyBox apps. It features EXT4 file system optimizations, better boot animation performance, improved power menu, smart dialer, lengthy APN & SPN List, allowed any File-Type to be downloaded and installation, and much more.
Though the ROM is stable but still is in development and contains some bugs like Wi-Fi tethering is broken, occasional memory leaks, and has no support for exFAT file system on SD cards. These bugs will iron out soon in near future.
Read on how to install SuperNexus ROM on Galaxy S3 but first do keep in mind that ClockworkMod recovery must be installed on the phone, be sure to follow our this guide to install ClockworkMod recovery 6.0. You also need to make a backup of your device data such as SMS, internet setting, contacts music files etc because the below procedure may wipe data, you can sync your contacts with Gmail account and for messages use SMS apps, lastly use file expert app to backup apps.
DISCLAIMER: Please proceed the below guide at your own risk, Android Egis will not be held responsible if your device lost data or get damaged following this guide.
Step #2: Place both downloaded files to the internal SD card of device.
Step #3: Turn the device off.
Step #4: Reboot the device into recovery mode by holding down volume up, home and power buttons.
Step #5: In recovery mode, create a nandroid backup of your current ROM, it’s important because if anything not work out that you expect from this ROM, you’ll be able to easily revert back to your current state. To create backup select “Backup and Restore”, and then select “Backup” again.
Step #6: Perform full wipe, first select the wipe data/factory reset, and confirm on the next screen.
Step #7: Select “Install Zip from SD Card” then “Choose Zip from SD Card” and locate the downloaded ROM file that you’ve transferred in above step and confirm installation.
Step #8: Once the ROM .zip file is installed on the phone, once again, repeat previous step and install the Google Apps .zip file in the same manner.
Step #9: Once the installation is completed, select “Go Back” after that select “Reboot System Now.”
That’s it, the SuperNexus custom ROM is now installed on your phone, enjoy the sweetness of Jelly Bean, if you faced any issue, do comment in below section. You can also visit the original thread of XDA link given in first step.