After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

Cellular providers offer all kinds of security and data encryption to their customers, but there's one task users should ...

Click to viewJust four days after its launch, the iPhone 3G has been unlocked for the first time exactly like the original iPhone: using a special card that piggybacks to your SIM card, fooling the ...

When Apple launches a new product, especially an iPhone or iPad, it's not uncommon for the company to have trouble meeting demand in the early weeks or months of availability. This is especially true ...

Click to viewAccording to the usual suspects, now you can 100%-unlock the iPhone using a Turbo SIM card, without depending on the version of your current carrier card. Testers say it will give you ...

In the past when traveling overseas I've always used a service like iPhoneTrip or XComGlobal, but I've been told many times that it's a lot cheaper just to purchase the SIM card locally after you've ...

Nano-SIM cards will arrive at the carrier in mid October, allowing owners of unlocked iPhone 5s to jump to its network, says a report. Edward Moyer Former Senior Editor Ed is a many-year veteran of ...

Apple today released an unlocked GSM version of the iPhone 5s on its online store for the United States. This version of the iPhone 5s includes the same exact capabilities of the non-unlocked models, ...

Android 17 could eliminate the hassle of remembering SIM PINs by automatically entering them after you unlock your device, ...

The new SIM-free phones can be activated at the carrier of your choice, starting at $649 for the 16GB iPhone 6. Lance Whitney is a freelance technology writer and trainer and a former IT professional.

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 ...