How to fix no service or signal on a Samsung or Android phone

⚡ Fast fix

• No service on your Samsung? Toggle Airplane mode on, wait 10 seconds, then turn it off.
• Still nothing? Restart your phone to reconnect to nearby towers.
• Signal dropped suddenly? Check for outages or move to a stronger coverage area.
• Keeps happening? Reset network settings or check your SIM/eSIM.

Imagine this—you try to make a call, but your phone won't connect. Instead, it displays a “No Service" message or shows zero signal bars, rendering it basically useless. Talk about aggravating.

Don't worry—at Asurion, we help millions of people troubleshoot, fix, and get the most out of their tech. From breaking a Samsung logo boot loop to showing you how to use Wi-Fi calling, we keep the devices you rely on working all day, every day. Here's our guide to why you're getting a "No Service" message on your Samsung® or Android™ phone, and exactly how to fix it.

Why your Samsung phone says no service

When you see No Service or Emergency calls only, your phone isn’t connected to your carrier. Here are the most common reasons:

• You’re out of coverage. If you’re in a weak signal area (indoors, underground, or rural), your phone may not reach a nearby tower.
• There’s a carrier outage. Network outages can temporarily cut off service—even if your phone is working fine.
• SIM or eSIM issue. A loose, damaged, or inactive SIM can prevent your phone from connecting.
• Network settings glitch. Software bugs or recent updates can interrupt your connection to your carrier.

How to fix no service on a Samsung phone

Start with the quick fixes—these solve most signal problems in minutes.

Toggle Airplane mode

This forces your phone to disconnect and reconnect to the network.

1. Open Settings.
2. Tap Connections.
3. Turn Airplane mode on.
4. Wait 10–15 seconds, then turn it off.

Restart your phone

A restart clears temporary bugs affecting your connection.

1. Press and hold the side button and volume down button.
2. Tap Restart.

Check your SIM or eSIM

Your phone needs an active SIM to connect.

• Remove and reinsert your SIM card
• Or go to Settings > Connections > SIM manager to confirm your eSIM is active

Check network mode

Make sure your phone is set to connect to the right network type.

1. Go to Settings.
2. Tap Connections > Mobile networks.
3. Tap Network mode and select the recommended option (like 5G/LTE/3G auto connect).

Reset network settings

This clears saved connections and reconnects your phone to your carrier.

1. Open Settings.
2. Tap General management.
3. Tap Reset.
4. Select Reset network settings.

This will remove saved Wi-Fi networks and Bluetooth pairings. Here’s more on how to reset network settings on Android.

Check for outages or account issues

If nothing else works, the issue may not be your phone.

• Contact your carrier
• Check for outages in your area

You can also learn more about why your phone says no service.

No service vs emergency calls only—what’s the difference?

Knowing the difference can help you troubleshoot faster. These messages can mean slightly different things:

• No Service—Your phone isn’t connected to any network
• Emergency calls only—Limited connection; emergency calls may still work

FAQ

Why does my Samsung phone say no service?

It means your phone can’t connect to your carrier—usually due to signal issues, SIM problems, or network settings.

How do I fix no service on Android?

Start with Airplane mode, restart your phone, then reset network settings if needed.

Can a bad SIM cause no service?

Yes. A damaged or loose SIM can stop your phone from connecting to your network.

Will resetting network settings fix no service?

Often, yes. It clears connection errors and forces your phone to reconnect.

Why does my phone randomly lose signal?

It could be weak coverage, network congestion, or a temporary software glitch.