AT&T iPhone users who have installed iOS 9.3.1 cannot downgrade back to iOS 9.3. The ‘fruit’ giant is no longer signing this previous release and keeps working on the future iOS 9.3.2 version. Still you can unlock iOS 9.3.1 iPhone as well as iOS 9.3 handset that is locked to AT&T carrier.
AT&T is one of the major American networks that are popular among customers. You can order AT&T iPhone SIM unlock iOS 9.3.1 service as this is the fastest and safest way to become SIM free once and forever.
The service is distant. You should know your IMEI code and have a good account with AT&T. It is often possible to SIM unlock blacklisted phones as well but you have to double check regarding your iPhone model, firmware version and statuses.
Make sure the phone is activated with AT&T network beforehand because the only model that is not supported by SIM factory unlock is the iPhone that is not activated. Its IMEI number is simply absent from Apple and carrier’s databases.
How can you order factory unlock for AT&T iPhone? You can select your model from the list of supported devices, choose your network package and provide your IMEI code. You can run different IMEI checker services and make sure you are eligible for the service.
This is remote unlock. There is no need for you to leave your home. You can place your order online and wait till you are informed about successful unlocking. You’ll have to activate your new unlocked status through iTunes.




