Even for mine one it says unlocked.... but still can't send SMS.
So stll the source of the problem is very blurry , we would need advices from someone that is truly informed about this topic.
What is still unclear:
1. Does the sms sending error happen on ALL the Sprint phones used outside USA with a non Sprint SIM card?
2. Does that same phone used with a Sprint contract work outside USA (I mean can they send messages?)
3. If this Sprint iPhone 5 is locked, as many claim, why my IMEI results to be unlocked (accordingly with http://dev.mk/2012/08/dev-mk-iphone-imei-checker-with-simlock-status-what-happen ed/) and why I'm still able to use in Europe with my local carrier SIM all the services except sending SMS?
4. Let's say it is a frequences problem... are SMS received and sent on different frequences? (hard to belive and I'm able to receive SMS). I'm not technical enough to tell if this could be the problem.
5. On the three phones I tested, both the Sprint ones do not send SMS's, while the Verizon one does. Hard to belive it is an hardware failure, since I tested on two devices, but could it be possible?
6. I was also able to reproduce the problem with two different SIMs, both working on the Verizon iPhone 5, so it is not the sim.
7. What software is installed on the phone (other than the firmware) which may lead to carrier specific features? Did Sprint provided or requested to Apple specific code which may lead to SMS send problems?
8. Is it possible that a similar problem may be solved by a future iOS update?
9. Do officially unlocked iPhone 5 devices work correctly in Europe? Sprint forum is full of people explaining how they got their phone unlocked... anyone with an iPhone 5 able to send sms in Europe?
10. GSM vs CDMA... aren't SIM based phones all GSM?
All the people that wrote on this forum up to now (included myself) are unable to aswer most of these questions (even if we probably share the same SMS/iphone5 issue). So I really hope someone can jump in and bring some light.
Pointing the finger to Apple store sales guys who sold a phone to (too) eager international customers will not help at all, even if I agree this was unfair if the problem of Sprint branded phones was known.
Thanks
Giulio