iPhone Says No Service, SOS, or Searching? Here's How to Get Signal Back
Your iPhone shows No Service, SOS, SOS only, or Searching in the status bar and can’t make normal calls or use cellular data.
Why: Your iPhone isn’t connected to a cellular network. That can be a temporary glitch, an outdated carrier profile, a SIM that’s worked loose, or an account or coverage problem on your carrier’s end. (“SOS only” still lets you call emergency services, just not your carrier.) Work through these in order.
Fix 1: Toggle Airplane Mode, then restart
This forces your iPhone to drop and re-find the network, which clears most temporary glitches.
- Open Settings.
- Turn Airplane Mode on and leave it on for at least 15 seconds.
- Turn Airplane Mode off and wait for the signal bars to come back.
If it’s still stuck, restart your iPhone (power off fully, wait a moment, power back on) and check again.
Fix 2: Install a carrier settings update
Carriers push small profile updates that fix exactly this kind of connection problem.
- Connect to Wi-Fi (you need internet, and your cellular is down).
- Go to Settings > General > About.
- If an update is available, you’ll see a prompt to update your carrier settings — tap to install it.
Fix 3: Reseat your SIM, or check your eSIM
If you use a physical SIM, remove it from the tray and put it back in, making sure the tray closes flush and isn’t loose. A SIM that’s been moved from another phone, is damaged, or doesn’t fit the tray can cause No Service — your carrier can issue a replacement.
If you use an eSIM, there’s nothing to reseat — contact your carrier and ask them to confirm the eSIM is active and re-provision it if needed.
Fix 4: Check the basics with your carrier, then reset
If you’re still searching for signal:
- Make sure you’re in an area with coverage and that your carrier isn’t reporting an outage.
- Confirm with your carrier that your account is active and in good standing and the line is set up correctly.
- Travelling? Turn on roaming: Settings > Cellular > Cellular Data Options > Data Roaming.
As a last resort, reset network settings — this erases saved Wi-Fi passwords, cellular settings, and VPN/APN settings: Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
FAQ
What does “SOS only” mean? Your iPhone is out of range of your carrier but can still reach another network for emergency calls. It clears as soon as you reconnect to your carrier.
It still says No Service after all of this. The problem is most likely your carrier account, your SIM, or coverage — contact your carrier. If they confirm everything’s fine on their end, your iPhone may need service.
Sources: Apple Support — If you see SOS, No Service, or Searching on your iPhone or iPad