Hi, my english isn't good, Im from SouthAmerica and Im not experienced with cellphones, I just registered here trying to find help with my problem, my s3 was working good with ariza patch but after somebody did an accidental hardreset the simcard is not working, imei:NULL/NULL. I try again with Ariza Patch but still the problem. In desperation I've installed some different Roms and now im not a Rooted user so i can't try with efs and rootexplorer. I dont know what to do, I came here for help, in my city I have to pay USD80.00 for someone to fix it, so I offer here USD20.00 for anyone who can help me, give me step by step instructions and solve the problem. I don't know if im in the right place to ask for this. sorry for my english.