Upgrade to android 5
Hello there.. i just upgrade my note 3 SM-N900T to android 5.0 and it was already unlocked before upgraded it. once i finished. i can not make any call,send a message, my carrier is not loger recongnised.. it seems that went back to factory. i made a back up of efs folder, but it doesnt work either. please help me.. besides that. it says something like this:
this phone has been flashed with unauthorized software and is locked ... i beg for your help... do i need to pay for unlocking the cell again?