Official Android 4.4.2 KitKat finally released to Sprint Galaxy S3 (L710VPUDND8) in early May 2014. For now, the Sprint model is the only Galaxy S3 variant which has received the KitKat update from Samsung, even the international models most likely won’t get an update similar to this. However, there is a warning for those who want to upgrade, especially for rooted users, since the root access will be gone after you upgrade to Android 4.4.2, once successfully upgraded your phone will be unrooted, so every app that needs superuser privileges will not be able to work nicely.
Apart from the brand new Android OS, the ND8 software update for Sprint Galaxy S3 also brings significant improvements, like the new lock screen access, media controls, camera shortcut, restyled status and navigation bar, wireless printing, and several others. This KitKat official update, will get rid of the obsolete impression from this smartphone. So, skipping this update is a mistake, let alone we can still return root on Sprint Galaxy S3 running KitKat (ND8 software version).
The superuser privileges that will be used might familiar to you, yes, the CF-Auto-Root still works with this software update. Listed below is a step by step on how to keep your Sprint Galaxy S3 rooted while on official KitKat updates (L710VPUDND8).
- A desktop computer or notebook with Windows OS.
- Setting up the latest release of Samsung Galaxy S3 USB Drivers.
- A Sprint Galaxy S3 smartphone (SPH-L710) running official Android 4.4.2 from OTA.
- An original USB cable, avoid using crappy cable, since in some cases it’s not stable.
- Charge your battery, more than 50% of battery capacity.
- Download the CF-Auto-Root exploit from official Chainfire’s site here, look for SPH-L710 model.
How to: Sprint Galaxy S3 running Android 4.4.2 KitKat (ND8) root
- Unzip the “CF-Auto-Root-d2spr-d2spr-sphl710.zip” it until you find a file with .tar.md5 extension and an odin executable (*.exe) file.
- Run the Odin by double-clicking the executable file.
- Soon after the Odin window comes out, click on “PDA” button and look for a “.tar.md5”.
- Look at Option area, make sure the Repartition option not checked.
- Grab your phone, then put it in download mode, with this magic combo key (Volume down + Home + Power). You’ll get a warning, opt to continue.
- Attach the phone to your PC via USB cable. At this stage, Odin should find out your phone, if not, there’s should be a problem with your phone’s drivers.
- Now you’re ready, click on the “Start” button, the flashing procedure should done in minutes, but don’t ever interrupt the process. Once the Odin shows a PASS, the phone will reboot on its own.
- Once fully boots up, update your SuperSU apps via Play Store, and run it. Now your Sprint Galaxy S3 running KitKat ND8 should rooted at this point.
Note from Chainfire: In some cases the device would not boot into recovery mode and gain root. Simply do the entire method again. If it still fails, ensure “Auto Reboot” option in Odin isn’t selected. Once flashing done, simply pull the battery out and put it again, and boot using this combo key (Volume Up+Home+Power), it will assist you to access recovery mode, then the root procedure will start out again.