How to Manually Upgrade Sprint Samsung Galaxy S3 to Official Jelly Bean Update L710VPBLJ7

Google already pushing the official Android 4.1.1 Jelly to Sprint Samsung Galaxy S3 SPH-L710  owners via an over-the-air update, but if somehow you are impatient and or can’t update your device, here’s another method if you want to upgrade now.  This was actually already announced and rolled out  since October 25, 2012 but

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