3FF stands for 3rd Form Factor. A SIM card that is physically smaller than a traditional (2FF) SIM, but larger than a nano-SIM (4FF). See: SIM The electric contacts and circuitry of a micro-SIM are ...

The SIM cards that fit into those tiny slots in your cell phone and tell your cellular network to whom your calls are to be charged come in four different sizes. With the only real difference between ...

Find out how to trim your own micro-SIM card for use in phones that require this new format. Sharon Profis Former Vice President of Content, CNET Studios As vice president of CNET Studios, Sharon led ...

Carrier has made it easier for AT&T iPhone 4 users to bring over their device to its wireless network. The offer comes at the same time AT&T is attempting to acquire T-Mobile. Roger Cheng Former ...

Adam Z. Lein has been a tech journalist at Pocketnow since 2002. He's also been a photographer since 1995 and a web developer & graphic designer since 1997 while working on the DEC intranet. He's also ...

As first reported by App Advice, in what could be a sign that T-Mobile USA will soon get the sought-after iPhone – and that’s pretty much a given if their merger with AT&T goes through, the company ...

Apple’s new iPad uses a different type of SIM card than your mobile phone, a Micro SIM. We have already seen how you can make your own Micro SIM using a standard SIM card and a pair of scissors. This ...

In order to use the iPhone 4 on T-Mobile you have to jailbreak it, unlock it and then annoyingly cut your fatty SIM into a Micro SIM. Annoying! T-Mobile is making it a little easier by giving Micro ...

The decision to use an unusually small SIM card in the iPad means current iPhone customers can't just use their iPhone's SIM in an iPad, as we reported last week. It appears increasingly likely that ...

AT&T stores have begun receiving new micro-SIM cards compatible with the carrier's LTE 4G network, prompting speculation that they could be compatible with a new third-generation iPad from Apple ...

This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. T-Mobile USA is targeting iPhone owners with the release of new Micro ...