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 ...

A new iPhone 4S accessory claims to successfully SIM unlock all models of the AT&T Apple iPhone 4S running iOS 5.0 and 5.0.1 firmware. As AT&T, unlike rivals Sprint and Verizon Wireless, does not yet ...

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 ...

One common issue that some users face is their new phone not accepting their SIM card, requiring an unlock code. We will cover various methods to obtain the unlock code and troubleshoot your SIM card ...

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, ...

Google's Android developer team on Friday announced the Android Dev Phone 1, the first Android-based device unlocked to allow the use of any SIM card or software. Android is a full mobile stack, from ...

If you're still debating which carrier to get your iPhone 4 this morning, here is some clarification on Sprint's policy on the micro-SIM card included with the world phone, which may be just the ...

Google’s Android team Dec. 5 quietly announced the Android Dev Phone 1, a SIM-unlocked and hardware-unlocked device on which programmers of the open-source mobile operating system can test and debug ...

Sprint customers who buy the iPhone 4S will be able to roam internationally on GSM networks, but will not find themselves with unlocked microSIM slots, a Sprint representative tells Ars. While some ...