That's why most of us try to fix this problem immediately when it happens to us. If it's a software glitch, restarting your ...
If your iPhone is the only device having data connection problems in your area, then you can try the troubleshooting methods ...
If not, it's likely you have a hardware problem that may only be fixable by contacting Apple customer service to repair or replace your phone. If your iPhone has gone completely haywire ...