I wanted to start a thread on the success stories of anyone who ever used a Sim card based unlock on a CDMA/GSM iPhone 4S, 5, 5S, 5C

I've personally used a few such as R-Sim Air, R-Sim pro, GPP turbo and wanted to see peoples success rate with unlocking with these or if they use any other brand.


GPP Turbo 6.1.3 seems to work on ATT iPhone 4S updated to ios7, no patch/jailbreak required, just plug and play, Perfect with internet,sms,talk and mms with the right profile installed for your specific carrier.

I've tried R-Sim air with no luck so far, still waiting on R-Sim 9's to get here so I can test on 5C and 5S.

What do you use? What is your success rate for CDMA 4S/5 unlocking?