When your iPhone 6s Plus can’t connect to a network, won’t send messages, or shows “No Service,” it’s not just frustrating—it can leave you completely cut off. Whether it’s dropped calls, failed texts, or a total lack of cellular signal, network issues can hit suddenly and for a bunch of different reasons. Here’s a complete guide to help you troubleshoot and fix network problems on your iPhone 6s Plus.
Check for Service Outages and Account Issues First
Before diving into settings or resets, do this:
- Contact your carrier to make sure your account is active and in good standing.
- Ask if there’s an ongoing network outage or maintenance in your area.
If your carrier confirms everything’s fine, move on to the steps below.
1. Restart Your iPhone
It sounds basic, but a simple restart can fix temporary glitches that affect network connections.
- Press and hold the Power (Sleep/Wake) button.
- Slide to power off.
- Wait about 30 seconds.
- Press and hold the Power button again to turn your iPhone back on.
2. Toggle Airplane Mode
This is a quick trick that can refresh your network signal.
- Open Control Center by swiping up from the bottom of the screen.
- Tap the Airplane icon to turn it on.
- Wait about 10 seconds, then tap it again to turn it off.
Your iPhone will reconnect to your carrier’s network. Check if the signal improves.
3. Check Cellular and Network Settings
A misconfigured setting can block your connection.
- Go to Settings > Cellular and make sure Cellular Data is turned ON.
- Then go to Settings > Carrier (if available) and set it to Automatic.
- Also check Settings > General > About to see if a carrier settings update is available.
If LTE is causing issues, try switching to 3G:
- Go to Settings > Cellular > Cellular Data Options > Voice & Data.
- Select 3G or 4G instead of LTE and see if the connection stabilizes.
4. Reset Network Settings
This wipes out saved Wi-Fi passwords, VPNs, and cellular settings—but it often fixes weird network problems.
- Go to Settings > General > Reset > Reset Network Settings.
- Enter your passcode if prompted, then confirm.
Your iPhone will restart. After rebooting, rejoin Wi-Fi networks and check for service.
5. Remove and Reinsert the SIM Card
Sometimes the SIM card isn’t seated properly or has picked up dust.
- Turn off your iPhone.
- Use a SIM eject tool (or paperclip) to pop out the SIM tray.
- Remove the SIM card and inspect it for damage.
- Reinsert the SIM card securely and power the phone back on.
If your iPhone still doesn’t detect it or shows “No SIM,” contact your carrier for a replacement.
6. Update iOS
Outdated software can cause bugs with your cellular connection.
- Go to Settings > General > Software Update.
- If an update is available, download and install it.
Make sure your phone has at least 50% battery or is plugged in before updating.
7. Factory Reset Your iPhone (Only If Nothing Else Works)
This should be your last resort. It erases everything and returns the device to factory settings, which can clear up deep software glitches.
- Go to Settings > General > Reset > Erase All Content and Settings.
- Follow the onscreen prompts to complete the reset.
- Afterward, set up your iPhone as new or restore from a backup.
Important: Back up your data first via iCloud or iTunes.
8. Still No Signal? It Might Be a Hardware Issue
If none of these fixes work, the issue could be physical damage—like a bad antenna, logic board failure, or water exposure.
- Visit an Apple Store or authorized repair center.
- Or contact Apple Support for diagnosis and repair options.
My iPhone 6s Plus has serious network problems, even if I reset it doesn’t change, ‘m having a hard time with this Apple phone