Seeing "Call Failed" on your Samsung Galaxy S25+ can be frustrating, especially when you need to make an important call. This error typically happens when your phone can't connect to the cellular network properly. Weak signals, software glitches, or incorrect settings are usually to blame.
Here are 13 effective ways to fix the call failed error on your device, starting with the quickest solutions.
1. Toggle Airplane Mode
The fastest fix is to reset your cellular connection by turning Airplane Mode on and off. This clears temporary network glitches that can cause call failures.
- Swipe down from the top of your screen to open the Quick Settings panel
- Tap the Airplane icon to turn it on
- Wait 10-15 seconds
- Tap the Airplane icon again to turn it off
2. Check Your Signal Strength
Weak cellular signal is the most common reason for call failures. Check the signal bars in the top-right corner of your screen. If you have one bar or no service, move to a different location or near a window for better reception.
3. Restart Your Phone
A simple restart can fix many software-related issues. For your Samsung Galaxy S25+, press and hold the Volume Down button and the Side button simultaneously for about 10 seconds until the screen goes black and the device restarts.
4. Check Focus and Do Not Disturb
Focus modes and Do Not Disturb can sometimes interfere with calls. Make sure these aren't blocking your incoming calls.
- Swipe down from the top to open Quick Settings
- Check if a Focus mode or Do Not Disturb is active
- Tap to turn them off if needed
5. Update Date and Time Settings
Incorrect date and time settings can cause network connection issues. Enable automatic time setting to fix this.
- Go to Settings > General management > Date and time
- Turn on "Automatic date and time"
6. Check Blocked Numbers
Make sure you haven't accidentally blocked the number you're trying to call.
- Open the Phone app
- Tap the three-dot menu > Settings > Block numbers
- Check if the number is listed and remove it if necessary
7. Verify Mobile Data and Roaming
Ensure your mobile data is enabled, especially when traveling.
- Go to Settings > Connections > Data usage
- Make sure Mobile data is turned on
- For roaming: Settings > Connections > Mobile networks > Data roaming
8. Update Carrier Settings
Carrier updates improve network connectivity and fix calling issues.
- Connect to a Wi-Fi network
- Go to Settings > Software update
- Tap Download and install to check for any system updates, which include carrier settings
9. Temporarily Switch Network Mode
Sometimes 5G or LTE connections can cause call problems. Try switching the network mode temporarily.
- Go to Settings > Connections > Mobile networks > Network mode
- Select a different mode like 3G/2G
- Test your calls, then switch back to your preferred mode
10. Check Your SIM Card
A faulty or damaged SIM card can cause call failures on your Samsung Galaxy S25+.
- Use the SIM ejector tool to open the SIM tray
- Remove and carefully reinsert the SIM card
- Try the SIM in another phone if possible
- Contact your carrier for a replacement if needed
11. Update Your Software
Software updates include bug fixes that can resolve calling issues.
- Connect to Wi-Fi and ensure your battery is sufficiently charged
- Go to Settings > Software update
- Tap Download and install any available updates
12. Reset Network Settings
This clears all network configurations like Wi-Fi and Bluetooth without deleting your personal data.
- Go to Settings > General management > Reset
- Tap Reset network settings
- Tap Reset settings and enter your PIN or password to confirm
13. Contact Your Carrier
If none of the above solutions work, the issue might be with your carrier's network.
- Call your carrier's customer service
- Ask about network outages in your area
- Request a SIM card replacement if needed
- Inquire about account or service issues
For persistent problems with your Samsung Galaxy S25+, you can also visit a Samsung service center or your carrier's store for professional assistance.