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 ...

There are several things that you need to consider when getting an pre-owned iPhone. The most important factor for most people is if the device is carrier locked. If you plan on using the phone on a ...

Wondering whether that iPhone you plan on buying off of craigslist is truly unlocked like it says in the ad? Want to make sure that your iPhone is able to switch carriers after a legitimate unlock ...

Walk away if the seller says the phone cannot be updated (indicates it’s stolen or bypassed) or if they are selling “brand ...