Problems making/receiving calls
After each troubleshooting step, check to see if your issue is fixed.
icon is missing
If disappeared from your home screen, you just need to add a shortcut for the Phone app.
SIM card not recognized
If you see or in the status bar or a message that the SIM is not recognized:
1. Turn your phone off and then on again.
Press and hold the Power button, then touch Power off. Then turn it on to establish a new connection with the
network.
2. Do one of the following:
•
If your phone allows one SIM card, turn your phone off, then remove and reinsert the SIM.
•
If your phone allows dual SIMs, disable the SIM, then enable it again. Go to Settings > Network &
internet > SIM cards. Turn the SIM off . Then turn it on .
3. If your phone has dual SIMs, turn your phone off, then remove the SIM that is not recognized and try it in the
other SIM slot.
4. Contact your carrier to make sure your account is set up properly.
5. Ask your carrier to replace the SIM card.
6. Perform an external phone reset.
No signal
1.
If you usually have a signal but the status bar shows in your current location, move to another area
where you can receive a signal, like outdoors. If you’re uncertain whether your carrier provides service in that
location, check the coverage map on your carrier’s website.
2. If airplane mode is on, turn it off.
3. Turn your phone off and then on again.
4. Check for app updates.
5. Check if a software update is available for your phone.
6. Check that the Preferred network type is set to Global. (Settings > Network & internet > Mobile network >
Advanced > Preferred network type.) If you’re experiencing service issues when it is set on Global, try a
different setting.
7. Remove your SIM card and reinsert.
8. Use safe mode to see if apps you installed are causing the issue and uninstall as needed.
9. Reset the phone.
Fix a problem : Call and SIM issues
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