Glory x 10max opens the software and says there is no mobile network.

The following actions are recommended: 1. Check whether the mobile phone network connection is stable. 2. Try to update the software version. 3. Click on the mobile phone application-Settings-Application Manager-Download-Select the problematic application-Clear the data. 4. Back up data (contacts, text messages, pictures, etc.). ), restore the factory settings and try to reinstall. 5. Update the mobile phone system version. Some estimates are that you haven't found it yet. If not, you can pull it down from the top, there is an icon for setting up the network on it, and then click the icon to go in, and you can set up the mobile network you want. 1. At present, the mobile 4G network already supports the call function, but you need to open the VoLTE service with your operator to support it, and you need to turn on the VoLTE switch on your mobile phone and set >; Wireless and network > mobile network. If you have turned on the VoLTE service and the VoLTE switch of your mobile phone is turned on, but you will fall back to the 2G or 3G network during the call, it is probably because you moved to a place with poor coverage of 4G signals during the call. 2. According to the telecom specifications, some areas have already opened VoLTE. You need to open the VoLTE service with the operator to support it, and you also need to turn on the VoLTE switch on the mobile phone EMUI5. X: settings > more > mobile network above EMUI8.0: settings > wireless and network > mobile network. If you have turned on the VoLTE service and the VoLTE switch of your mobile phone is turned on, but you will fall back to the 2G or 3G network during the call, it is probably because you moved to a place with poor coverage of 4G signals during the call. The common reasons why mobile phones can't answer calls and their solutions are as follows: [1] Check whether the mobile phone is in arrears and stop, and suggest paying; [2] Check whether the mobile phone is set with call forwarding, flight mode on and call barring. Suggest canceling and try again; [3] Check whether the function or signal of the mobile phone is normal, and suggest to change the mobile phone or try again; [4] If roaming to other places can't be used, it is recommended to check whether the local network signal is normal and whether roaming permission is enabled for this number; [5] Can you answer the phone when trying to restart or replace the phone? [6] Take the mobile phone card to the local business hall for testing or replacement.