Fix Galaxy S25 text messages not sending

When your Galaxy S25 won’t send text messages, it usually comes down to a network glitch, a messaging app issue, or incorrect APN settings. This guide covers the most common fixes in order from simplest to most involved.

Method 1: Check signal and airplane mode

SMS requires a cellular connection. If you have no signal bars or airplane mode is on, texts won’t go through.

1. Look at the status bar for signal strength. If you see no bars or an X, move to an area with better coverage.
2. Pull down the quick settings panel and make sure Airplane mode is off.
3. If airplane mode was already off, toggle it on, wait 10 seconds, then toggle it back off. This forces the phone to reconnect to the network.
4. Try sending a test message.

Method 2: Restart the phone

A restart clears temporary glitches in the modem and messaging stack.

1. Press and hold the Side button and Volume Down button together.
2. Tap Restart.
3. After the phone reboots, try sending a text again.

Method 3: Clear the messaging app cache

Corrupted cache in the messaging app can block outgoing messages.

1. Go to Settings > Apps.
2. Find and tap your messaging app (Google Messages or Samsung Messages).
3. Tap Storage, then tap Clear cache.
4. Reopen the app and try sending a message.

Method 4: Check the default messaging app

If you have multiple messaging apps installed, the wrong one may be set as default.

1. Go to Settings > Apps > Choose default apps.
2. Tap SMS app and select your preferred messaging app.
3. Try sending a text from that app.

Method 5: Verify the message center number

The SMSC (Short Message Service Center) number routes your texts through your carrier. If it’s wrong or missing, texts won’t send.

1. Open the Phone app and dial *#*#4636#*#*.
2. Tap Phone information.
3. Scroll down and check the SMSC field. If it’s blank, contact your carrier for the correct number and enter it.
4. Alternatively, removing and reinserting the SIM card can sometimes restore the SMSC automatically.

Method 6: Check for blocked contacts

If texts fail only to specific people, you may have accidentally blocked them.

1. Open your messaging app.
2. Go to Settings > Blocked numbers (or Block numbers and messages in Samsung Messages).
3. Review the list and unblock any contacts you need to message.

Method 7: Reset network settings

This clears all saved Wi-Fi passwords, Bluetooth pairings, and cellular configurations. It often fixes persistent SMS issues caused by corrupted network data.

1. Go to Settings > General management > Reset.
2. Tap Reset network settings.
3. Confirm and wait for the phone to restart its connections.
4. Reconnect to Wi-Fi and try sending a text.

Method 8: Update software

A software bug could be causing the issue. Check for any pending updates.

1. Go to Settings > Software update.
2. Tap Download and install.
3. If an update is available, install it and restart the phone.

Method 9: Test in Safe Mode

Safe Mode disables all third-party apps. If texting works in Safe Mode, a downloaded app is causing the conflict.

1. Press and hold the Power button until the power menu appears.
2. Long-press the Power off option until Safe mode appears, then tap it.
3. Once in Safe Mode, try sending a text.
4. If it works, restart normally and uninstall recently added apps one by one until you find the culprit.

If nothing works

• Contact your carrier to confirm your account is active and SMS service is enabled.
• Try your SIM card in another phone to rule out a SIM or account issue.
• If you recently switched from an iPhone, make sure iMessage is deregistered for your number at Apple’s iMessage deregistration page.
• Visit a Samsung service center if you suspect a hardware issue with the modem or SIM tray.