I have no signal

[arkadiuszlisik]

I have no signal on my phone. I've lost signal on my phone for two days, I can't be reached and no one can call me. To log in to the phone, I need codes that I cannot receive because I have no reception. please help me

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[Enlli]

Start with these

Guide: Is the network down for me or everyone? 

Guide: How can I sort out my network issues? 

[Bambino]

@arkadiuszlisik You can use WiFi calling until you sort out your network issues: 

Wifi and 4G Calling explained | O2