New Android Q code suggests the upcoming OS version will give carriers more control over SIM-locking phones. Carriers could, hypothetically, lock out the second SIM tray in a dual-SIM phone if the ...

Have you ever gotten a new phone only to find out it’s locked to a specific carrier? This often happens when you purchase a subsidized phone from a carrier. The carrier locks the phone so you can’t ...

What does it mean if your iPhone is locked? If your iPhone is carrier-locked, it's only going to work with the cellular provider that locked it. However, if your iPhone isn't locked, you'll be able to ...

Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...

An unlocked phone is the key to getting service from an alternative carrier. Here's how to check if a phone is unlocked.

One of the standout features of Android Q, the next major release of Google's popular mobile operating system, is a system wide dark mode that got skipped over in Android P. A legion of users is sure ...

The Google Pixel 3 and Pixel 3 XL, two phones that are fully capable of working on every major carrier without issue, are SIM locked out of the box when purchased as a “Verizon” model. That means they ...

Major cellular carriers — Verizon, AT&T, T-Mobile, Sprint, and others — typically lock their networks to the iPhone you buy from their stores or pay for via an installment plan. What does that really ...

(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish ...

Every smartphone is either locked or unlocked, depending on where you buy the device from. When you acquire a new mobile phone directly from a U.S. carrier like AT&T or Verizon, it will be locked to ...

In this guide we’ll show you how to SIM unlock the Galaxy S9 so you can use it on different carrier networks. That way if you bought the Galaxy S9+ from AT&T, you can still take it to T-Mobile if you ...