Repair and disassembly information for Samsung's flagship S21 Ultra Android smartphone, released in January of 2021.Also known as the Samsung SM-G998U1
When I'm at home it works fine, when I change another palce it says emergency calls only and noservice and it works for a few minutes at the same place.
Your issue may be due to WiFi calling being turned off on your phone. Your phone will show that it is connected to a WiFi network but it will not allow for calls to be made when not connected to your service network.
Turn on Wi-Fi calling
Open the Phone app .
Tap More. Settings.
Tap Calls.
Tap Wi-Fi calling. If you don't see this option, it's because your carrier doesn't support this feature. You can use Wi-Fi calling without a service on some carriers.
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Your issue may be due to WiFi calling being turned off on your phone. Your phone will show that it is connected to a WiFi network but it will not allow for calls to be made when not connected to your service network.
Turn on Wi-Fi calling
Open the Phone app .
Tap More. Settings.
Tap Calls.
Tap Wi-Fi calling. If you don't see this option, it's because your carrier doesn't support this feature. You can use Wi-Fi calling without a service on some carriers.
由 Hast 完成的
My phone doesn't have wifi calling tell me another solution
由 Ahmed Kassim 完成的