Sometimes device unlock can take multiple phone calls and hours (up to two days according to CTIA guidelines). If you bring your device abroad, I recommend that you start the process at least one week in advance to receive incoming calls during an EV Do data session, but in a 1xRTT (Vision) data session, calls are still forwarded to voice mail. If they sold you a phone with incorrect presets (the phone may work), it probably stolen or you sold a phone that broke the contract. Apple Instructions For Unlocking Iphone. With more than a decade of network administrator experience, Gregory has an information certificate from the University of Maryland and has MCSE certification. Since the leasing equipment is not owned by the user, the end of the lease purchase option must be exercised and paid in full before the SIM release is complete. Some smartphones can even be locked out when you buy them from a carrier at full price without signing a contract, which shows how stupid that argument is. While iPhone 6 supports most international mobile phones (similar to Motorola Nexus 6)), it does not immediately mean that it can work on any network by simply replacing the SIM card (what is a SIM card?) Because there are others complicating factors. If you are incompetent with customer service navigation and have a GSM phone (using a SIM card), you can replace a SIM card from another provider to see if it works. Accept it bought an iPhone that is currently locked with a Sprint account and the owner of the device is not following the instructions. To unlock the device, you will not perform the unlocking process without a headache. Sprint strongly recommends that owners of such devices consider Sprint buyback program so that they can trade in their older devices to get credit in the store to purchase a new device or credit an account.