If you’ve just switched over your phone’s data plan to GiffGaff to save some money, congrats – GiffGaff is a solid, reliable network. But how do you actually activate a GiffGaff SIM card? As always, ...

You may have had AT&T SIM (Subscriber Identity Module) card problems on your iPhone before or received the notification "Airtel SIM not provisioned." This happens sometimes, and the reason is fairly ...

You generally can't use an Apple iPhone on a cell network if it's never been activated with such a network, although once it is activated you can remove your SIM card or simply never connect to the ...

Stephen is an author at Android Police who covers how-to guides, features, and in-depth explainers on various topics. He joined the team in late 2021, bringing his strong technical background in ...

We previously reported that a tiny handful of iPhones shipped without SIM cards, while significantly more units have generated the error message "No SIM card ...

Nida is a tech and telecom journalist with more than five years of writing experience. She graduated from the University of Toronto with a BA in journalism. You have more than one option for ...

If you've just got your hands on a shiny new Sim card, congratulations. Switching your Sim (the chip that dictates your allowance) can unlock huge savings. Now comes the crucial step of activating it ...

Activating a T-Mobile SIM card is a straightforward process that allows you to connect your device to T-Mobile's network and enjoy their services. Whether you're a new T-Mobile customer or upgrading ...

Can you use an iPhone without a SIM card? Yes, you can. But the tricky part is activating and setting up the phone in the first place. If you’d like your child to be able to use a spare phone without ...

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...