The iPhone 7 has been available for about a month, and we think it’s a great smartphone. But until now, you’ve had to have your new iPhone to a carrier, even if you bought it off contract. Not any ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

When your iPhone iPhone 7 shows ‘No Service,’ ‘Searching…’ or ‘Invalid SIM,’ you lose cellular connectivity entirely. This can be due to SIM card problems, carrier settings, or software glitches.

Have you ever wondered exactly how a SIM card works? We’ll help you understand why your phone needs one and what they do to keep you connected. Image: TalkAndroid Editorial Note: Talk Android may ...