(1) A cellphone that operates on any cellular carrier's network that supports the same air interface (GSM or CDMA) and frequency bands built into the device. See SIM card, SIM lock, jailbreaking ...

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 ...

Depending on where you buy it, your Android phone may be unlocked and can support SIM cards from any carrier, or it could be carrier-locked and require specific SIM cards. While it’s not always ...

What if I have an old Sprint phone, how can I unlock it for T-Mobile? Actually, Sprint hasn’t been around for years and was absorbed by T-Mobile. This means you don’t have to unlock a thing ...

SEE ALSO: 2024 Black Friday ads: Best deals from Amazon, Target, Walmart, Best Buy, Home Depot, and more If you're in the market for a new phone, consider going unlocked. Unlocked phones give you ...