There are two types of phones—those locked to a carrier and those free to use whatever carrier they want. There will come a time when you need to know which one your phone is. Thankfully, you'll have ...

You can switch to another wireless provider without buying a new phone. Here’s how. By Courtney Lindwall Switching to a new cell phone service provider can save you hundreds of dollars per year—and ...

You can check to see if your iPhone is unlocked in Settings or by checking the IMEI and serial number online. You can also test your phone by swapping SIM cards with another phone that has a plan with ...