When troubleshooting an iPhone that is not sending messages, first make sure your phone has service, then proceed with these tips.

It's easy to enable iMessage on an iPhone to send messages over cellular data or Wi-Fi with other iPhones, or over Wi-Fi with iPads or Mac computers.

iPhone users on iOS 26, iMessage activation may be blocked by an inactive SIM — here's how to fix it. Some users are finding ...

Apple says the issue may stem from having an inactive SIM with the same number as your active SIM. To fix it, remove the ...

If your texts are falling back to SMS, try these steps to ensure that Apple's Messages app is properly functioning. I started my career with CNET all the way back in 2005, when the (original) Motorola ...

If you're an iPhone owner, you might be familiar with this experience. You're having a back-and-forth conversation with your friend over iMessage, when suddenly there's a lull and your blue bubbles ...