IQOO's mobile phone can't make a call. What happened?

If the device cannot make a call, please refer to the following methods for troubleshooting:

1, cornet reason

Unable to dial the cornet, which means that the number does not exist. When using cornet, it may exceed the specified use area. It is recommended to dial the ordinary 1 1 digit telephone number.

2. Network reasons

If the network quality of the current location is poor, such as basement, elevator and other areas, it is recommended to leave and try again. If you are using a metal or magnetic mobile phone case or bracket, it is recommended to take it off and try it.

Step 3 Set the reason

Check whether there is a "Flight Mode" icon in the status bar of the mobile phone. If there is an icon, please go to Settings or Settings >; Turn off Airplane Mode in other networks and connections.

4. Reasons for blacklisting

Unable to dial the fixed number, prompting the user to be busy. Maybe the other party has blacklisted your number. I suggest you contact each other through other means, remove the blacklist and try again.

5. Reasons for calling prohibition.

Confirm whether the calling card has call barring service. Some operators support call barring service. If the calling card has service, some or all calls will be restricted. Please consult the operator for details.

Reasons for 6.2G/3G quitting the network

At present, operators have shut down 2G/3G networks in some areas. If your machine supports the VoLTE function of the corresponding operator, it is recommended that you contact the operator to open VoLTE HD calling service and try again. When the VoLTE function is turned on, the HD icon will be displayed in the signal bar.

7. Anti-fraud and false sealing

At present, the anti-fraud background may be blocked by mistake. If you call to prompt "Your mobile phone has been suspended" and the Internet is normal, you need to contact the customer service of the corresponding operator for help.

8. Search the network again or restore the network settings.

Please go to settings or settings > other networks and connections are turned on in airplane mode, and then turned off. If necessary, you can go to Settings >; System management and upgrade/system management > backup and reset, select "reset network settings" and try again.

If the above methods don't help you, please take your mobile phone and purchase voucher to the vivo customer service center (hyperlink: webpage link) for processing. Address of vivo Customer Service Center: Go to the APP-My-outlet of vivo official website /vivo Mall and select the current city to get the address and contact information of the service center. It is recommended to call in advance before going to avoid empty running, plan your trip reasonably and travel safely.