If you purchased a Nokia smartphone through a mobile carrier, such as Verizon or T-Mobile, your phone is likely locked, meaning it’s restricted to that company’s network. If you want to switch to a different network or are traveling and face expensive roaming charges, it’s possible to unlock your Nokia phone so you can switch between carriers.

Before you attempt to unlock your Nokia smartphone, you should determine if it is carrier locked. If you purchased the device at full price, directly from an electronics store, your Nokia smartphone is likely unlocked. If you purchased the device through a carrier plan or from a carrier store, it is likely locked.

If you want to unlock your Nokia phone to use it with another carrier, make sure that the device supports that carrier's network technology. Check the manual of your Nokia phone to see which frequencies it supports and contact your future carrier to check if the device is compatible.

Follow your carrier’s specific instructions to unlock your Nokia phone. Here’s a look at the general process, though the steps may vary depending on your service.