SAMSUNG GALAXY S2 SGH-I777 UPGRADE TO JELLY BEAN 4.1.2 PROBLEMS
I just upgrade my S2 I777 to Jelly Bean 4.1.2... but i have a really big problem.... when i connected my S2 to any source of energy ( charger or usb ) my cell phone always shuts down... and its like rebooting ( green battery icon , and battery empty icon, and again green battery icon, and again the battery empty icon ), but when i disconnected the energy source, cell phone start working again.... im so mad !!! somebody can help me please !!!!