Are you not getting cellular coverage on your iPhone? Seeing the “Issue Detected” message under Cellular Connection in your iPhone settings? Don’t worry — this is a common issue faced by many iPhone users, and there are several working methods you can try to fix the “Cellular Connection Issue Detected” error.
This error may show up due to various reasons like SIM card issues, software bugs, or incorrect network settings. In this guide, we’ll walk you through the best ways to fix this problem and get your iPhone back online.
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What Happens When Cellular Connection Issue Appears?
When your iPhone faces this issue:
- There’s no network coverage on the status bar
- You see four dots instead of signal bars
- You’re unable to make calls, send texts, or use mobile data
How to Fix the “Cellular Connection Issue Detected” on iPhone
Follow these methods one by one to resolve the problem:
Toggle Airplane Mode
If the Cellular Connection Issue Detected message is appearing due to temporary bugs, a quick toggle of Airplane Mode might fix it.
Swipe down from the top-right corner of the screen to open Control Center, then tap the Airplane Mode icon to enable it.
Wait a few seconds and tap it again to turn it off.
If your iPhone reconnects to the network, the issue is resolved. If not, try the next solution.
Eject and Reinsert SIM Card
Remove the SIM card from your iPhone, wait about one minute, and then reinsert it.
If the signal bars reappear, this simple trick has fixed the problem.
Check for a Faulty SIM Card
A faulty SIM card can also cause the Cellular Connection Issue Detected error.
Try inserting a different SIM card into your iPhone and check if the signal bars appear.
If they do, your original SIM card may be defective. Contact your service provider to get a replacement SIM card issued.
Update Your iPhone Software
Sometimes, a bug in the current software version can cause connectivity issues.
To check for updates:
- Go to Settings → General → Software Update
- If an update is available, download and install it.
After the update, your iPhone may start showing signal bars. If not, or if no update is available, proceed to the next method.
Reset Network Settings
Resetting network settings can resolve any errors or misconfigurations that might be affecting cellular connectivity.
Don’t worry—this won’t delete your personal files, but it will erase saved Wi-Fi passwords and other network settings.
To reset network settings:
- Open Settings → General → Transfer or Reset iPhone
- Tap Reset, then choose Reset Network Settings
- Enter your iPhone passcode and confirm the reset
Once the reset is complete, your iPhone should reconnect to the network and display signal bars.
Still Not Fixed? It Might Be a Hardware Problem
If none of the above solutions worked, your iPhone may have a hardware issue. Visit the nearest Apple Service Center or contact Apple Support to get it checked professionally.
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