Samsung S3 GT-I9300 "not registered on network"
HI.
I'm from UAE. i am using Samsung Galaxy S III GT-I9300 over an year ago with factory unlock. Using Samsung Galaxy S III from over a year now. I upgrade firemware 4.1.2 to 4.3 JB from web side mobiles.com ite working normal but its slow after i degrade again 4.3 to 4.1.2 jb (XSG-I9300XXEMF6-20130730150328 4.1.2) but when i make call my S3 wasn't able to make any new calls it said "not registered on network" i tried doing a factory reset but that didn't fixed the problem then i searched on the internet and got to know that my IMEI got corrupted it's something like 0049990106400000/ 01 and serail # 00000000.please help.
HI.
I'm from UAE. i am using Samsung Galaxy S III GT-I9300 over an year ago with factory unlock. Using Samsung Galaxy S III from over a year now. I upgrade firemware 4.1.2 to 4.3 JB from web side mobiles.com ite working normal but its slow after i degrade again 4.3 to 4.1.2 jb (XSG-I9300XXEMF6-20130730150328 4.1.2) but when i make call my S3 wasn't able to make any new calls it said "not registered on network" i tried doing a factory reset but that didn't fixed the problem then i searched on the internet and got to know that my IMEI got corrupted it's something like 0049990106400000/ 01 and serail # 00000000.please help.