There have also happened to some iPhone 4 although it seems to whip out the Sprint-Carrier bundle, making it impossible for unlocked 4s to never return to sprint. General Legal Requirements to Unlock Sprint Units Sprint provides the code to unlock MSL on a Sprint device under the following circumstances: The Sprint device can be unlocked. It depends on the phone, I know that most Android phones have different model numbers, depending on which carrier they are intended for, the only difference is the radio carrier that only allows the phone to access the special bands used by each Vehicle. It works for the life of the Apple iPhone 4 unlock the codes. Dvd Movie Cutter Software. - Do I need to unlock the unlock code for Apple iPhone 4 every time I change SIM card? - No, even if you upgrade the software (Flash) or reset the Apple iPhone 4 unlock code, it remains permanently unlocked, no matter what you do. I see that you have both sent an email to our help, which is one of the best ways to take care of this, the other would be calling us at 1-855-846-4389. Source: - Retired November 23, 16:24. November 17, 2014 - I have recently noticed that neither Swift Unlocks nor Chronic Sprint have listed on their websites. Although iPhone 6 physically supports most internationally used mobile phones (like Motorola Nexus 6), it does not mean that it works immediately on a network just by replacing the SIM card (what is a SIM card?) Because it are other complicating factors. We purchased 2 iPhone 5c and could not be approved for enough lines (wanted 5 lines), but my daughter has changed the maiden service because they do not use SIM cards either. You can not use it. Some people in Sprint BAW Forums are currently contributing to this false sense of hope because they do not know how the iPhone works. For devices that can not unlock SIM (typically devices launched before February 2015) Sprint an invoice notification to postpaid customers if they are entitled to receive an MSL lock code if the device has an MSL code.