The weird thing is if I flash AOKP or SlimRom I have signal and an IMEI everything works fine, it wouldn't be an issue except AOKP take 20 minutes to boot up every time and SlimRom keeps randomly rebooting on it's own and runs slowly.
What I tried was this: Flashed SlimRom > downloaded Terminal Emulator > ran "su" then "reboot nvbackup" > then once it rebooted I went back to recovery and installed Carbon > again installed Terminal Emulator > ran "su" then "reboot nvrestore" > after that it got stuck on the GS3 splash screen until I wiped and reinstalled a ROM. Still no fix.
What do I need to do to fix this proper?
P.S. The only *#xxx# number I could get to work was the *#06#, the rest do nothing on my phone.