Samsung official Android 4.1 Jelly Bean firmware L710SPRBLIF for Sprint Galaxy S3 has got leaked and is available to be installed on your device. Thanks goes to XDA Recognized Developer freeza for rooting and releasing the firmware. You should remember that the firmware is not an official release by Samsung or Sprint but a leaked pre-release version.
The guide mentioned below is only for Sprint Galaxy S3 SPH-L710 and will not work on any other device. You can check device model by going to Settings >> About Phone.
We cannot be held liable for any loss or damage done to your device while following the guide.
Install official leaked L710SPRBLIF Android 4.1 Jelly Bean firmware on Sprint Galaxy S3
Take a complete backup of data,apps and settings as the procedure may wipe your data.
Make sure that the battery of device has a minimum charge of 60%.
Enable “USB debugging” on your device by going to Settings >> Developer options >> Enable USB debugging.
Install ClockworkMod recovery on Sprint Galaxy S3 if not installed.
Download leaked Sprint Galaxy S3 Jelly Bean Update (LIF_update_FULL_DeOdex.zip) and Modem (Galaxy-S-fre3-LIFFirmwareModemAIO.zip).
Copy both the zip files to Internal SD-Card of your device without extracting.
Turn off device and enter into ClockworkMod recovery. Hold power button and volume down button and enter recovery.
Select “wipe data/factory reset” and wait for few minutes till the data gets wiped.
Select “install zip from sdcard” and then select “choose zip from sdcard”. Navigate to the ROM file which you have downloaded and confirm to “install”. Wait till installation gets complete.
Select “choose zip from sdcard” once more and then select “Galaxy-S-fre3-LIFFirmwareModemAIO.zip” file to install the modem.
Select “go back” and then select “reboot system now”.
Official leaked L710SPRBLIF Android 4.1 Jelly Bean firmware is installed on Sprint Galaxy S3.