When your iPhone iPhone 17 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.

Although it launched alongside the rest of the iPhone 17 lineup, the iPhone Air hasn't been as successful as the three iPhone 17 models. Battery life, the single-lens rear camera, the lack of stereo ...