If you are switching from Android to an iPhone and want to transfer the SIM card, the steps to take can vary widely. Here's everything you need to know.

If it still doesn’t work, try inserting the SIM in another device and check if it is a SIM-related issue. If it works on another device, try factory resetting it as a final resort.

Apple's move to eSIM on the iPhone 15 isn't as complicated as it sounds. Here's how to get your SIM transferred over if you're coming from an Android phone.

If your iPhone says there's no SIM card in the device, it may be down to one of several possibilities. Here's the troubleshooting list.

GSM iPhones cannot work without a SIM card, so troubleshooting and inspecting this memory chip can maximize your iPhone's performance.

SIM cards are so thoroughly integrated into our everyday lives that we don't pay attention to them anymore and do not understand what they are used for. In this article, we dig into the concept of SIM ...

A SIM card stores your subscriber identity data, which is needed to connect to a carrier's network. But do you still need one in 2025?

The new iPhone 14 series no longer have a physical SIM card tray in the US, and here’s everything you need to know about the new changes.

You don't need to buy a new iPhone to be able to run multiple SIM cards. In fact, you can run as many as five SIM cards in your existing iPhone.

Many Android phones already offer dual SIM support, but it's never been available on an iPhone. Apple announced three new iPhones on Wednesday evening – the iPhone XS, iPhone XS Max and iPhone XR.