Install T999LUVUBMK4 Official 4.3 T-MO Galaxy S3 LTE (T999L) Stock Firmware

Here’s the stock firmware T999LUVUBMK4 an official Android 4.3 update for T-Mobile’s  LTE-enabled Samsung Galaxy S3 (SGH-T999L). The ‘MK4 build’ brings the KNOX and Galaxy Gear compatibility support to the phone and as well as improvements and enhancements and all other 4.3 stuff. This stock firmware is only for those devices that

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