Activate your iPhone back to AT&T if the SIM card you insert after you install blackra1n onto the device doesn't work properly. Blackra1n is a third-party program that "jailbreaks" SIM-bearing iPhones ...

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

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

If you're having trouble getting iMessage to work after upgrading to iOS 26, Apple is aware of the issue and has shared a fix ...

Though we don't know the scope of the users affected, we do know who might be affected. According to Apple, the issue might occur when updating to iOS 26 if you have an inactive SIM with the same ...

Changing carriers can be exciting. You might get to pick up a new phone, or maybe you want better coverage in your home area. Either way, you have to know how to get set up. Each carrier tackles SIM ...

Here's how to fix iOS 26 iMessage activation bug on phone number, with the fix coming straight from Apple in official ...

OS 26 users are reporting iMessage activation issues caused by inactive SIM conflicts. Learn why this happens and how to fix ...

If you have a new device or are changing the SIM in your current device, you will need to activate your SKY Mobile SIM to receive mobile service. Continue reading to discover how to do so quickly and ...

Many smartphone users upgrade their devices to a newer device (in India), and they tend to face SIM card issues at times after switching to a new device. This is because, if you do not activate a few ...

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 ...