Provide them with your device’s IMEI number and make the necessary payment. Expect to receive your unlock code via email within a few hours or days.

Unlocking your cell phone lets you switch carriers without buying a new device. Consumer Reports explains how to do it.

Many postpaid 3G devices can sort of be unlocked without a code. There are two preset codes that you can use to unlock them — either “000000” or “123456”.

But if you’re not, there’s no way to enter the SIM unlock code manually as you do on other devices. The good news is that there’s still a way to unlock these phones, but you will need to pay.

Cellular carriers lock their networks on the iPhone you buy from their store or pay for via installments. Here's how to unlock your iPhone to switch carriers.

You could search online for the codes that might unlock your device — or try to hack it in other ways. But what you usually couldn’t do was call your carrier and ask how to do it.

For any other device, an unlock code will be sent to you via email. Use the code to unlock the phone. In a few cases, O2 may need to contact the device manufacturer to get the unlock code.

Some codes are specific to certain models, but other, more generic codes can be accessed on nearly any Android device.

I’m a pretty big fan of what Google is doing with its Pixel Watch and Pixel phone lineup. These devices are some of the best ways to experience Android on a smartwatch or a smartphone, and ...

Any product launched after today, May 24th, 2018, will not be eligible for a bootloader unlock code. For devices release prior to today, codes will only be available for 60 days.

A pair of security researchers have cooked up an electronic master key that can unlock millions of hotel room doors.