Android Gadget How To's News Samsung Samsung Galaxy SII Samsung Smartphone Software Update Galaxy SII I777 to Official Android 4.1.2 Jelly Bean I777UCMD8 firmware Oct 6, 2013 RJDREYES How to update New Firmware I777UCMD8 - Android 4.1.2 Jelly Bean OS for Samsung Galaxy SII AT&T (SGH-I777) (Important Note:…