If you got your device from Apple directly, you could buy a model from a pre-selected carrier or purchase the phone outright with no carrier affiliation. This feature only applies if you bought your device straight from Apple (either at full retail or through their iPhone Upgrade Program), through a third party (assuming the seller did not have a carrier agreement before purchasing), or through your carrier. If you’re an iOS user, you can easily unlock your iPhone. How can you tell if your device’s SIM is unlocked once you have paid it off? Well, the answer depends on what phone you’re using and whether or not it accepts multiple carriers. After that, you can unlock it and use it with the carrier of your choice. Since you’ve signed a contract with that specific carrier, you’ll have to stick with them until the contract is up or the payment plan is paid in full. If you bought your phone through a carrier, either on a two-year contract or a monthly payment plan, your phone is locked to that service provider, even if it is compatible with other networks. Since not all phones ship unlocked from the Original Equipment Manufacturers (OEMs), knowing if the device works outside the current carrier is essential. It’s safer to buy an unlocked device directly from the manufacturer, but you can find these cross-compatible cell phones at a lower price on eBay and other third-party seller sites. Your carrier can unlock your phone once specific criteria are met, or you can purchase an unlocked device.

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