Mobile data connection doesn t show up after it s turned on?

If the mobile phone cannot access the Internet normally, you can troubleshoot according to the following conditions:

Situation 1] The contact between the SIM card and the metal contacts of the mobile phone is insufficient, and the SIM card can be reinserted.

Situation 2] If the SIM card is damaged or there is a problem with the mobile phone, you can change the phone to test whether it is the SIM card or the mobile phone is faulty.

Situation 3] The current location is a signal blind zone or suddenly no signal, you can change places to test and pay attention to whether the mobile phone signal of other users around you is normal.

Situation 4] If the mobile phone card is in arrears or is shut down, you can pay off the arrears and turn it on.

Situation 5] The service is suspended due to abnormal use of the number, such as the number being used for illegal or illegal activities.

Situation 6] Roaming in Taiwan, Hong Kong, Macao or abroad can only be used after enabling Taiwan, Hong Kong and Macao roaming and international roaming.

Situation 7] If the total traffic generated by the Internet reaches the ** traffic cap value in the current month, the system will automatically turn off the Internet access function, or limit the speed of the network, and the network will be automatically restored in the next month, which shall be subject to your ** traffic cap rules.

It may be that the mobile phone is in arrears, and only pay the mobile phone bill; Network problems, it may be that the mobile data cannot be used due to poor network signal, just change places; If you have problems with your phone, you can restart your phone or restore it to factory settings in Settings.

It may be that the mobile phone is in arrears, and the mobile phone bill can be handed in; Network problems, it may be that the network signal is not good and the mobile data cannot be used, just change the place; If you have problems with your phone, you can restart your phone, or do a factory reset in Settings.

1. The reasons why the mobile phone is turned on the data network but does not display and cannot be used may be as follows: the mobile phone card is not plugged in properly and the contact is poor; The network signal cannot be searched in the location or the network signal is unstable; The mobile phone card, card slot or mobile phone terminal is damaged; The status of the mobile phone card is abnormal (such as shutdown, closed account, etc.); The mobile phone terminal card slot 1 does not support the network.

2. You can try to solve the problem in the following ways: turn on and off the mobile phone and restart it to test; You can re-search the China Unicom network in a different location; Whether the mobile phone card has enabled the Internet access function; Verify that the mobile terminal supports the carrier network being used; If the above methods still cannot solve this problem, it is recommended to contact local customer service or consult the official customer service of mobile phone for understanding.

1. Check your phone's settings.

Open the mobile phone Quick Center (scroll down at the top or scroll up at the bottom) to see if the data network is turned on.

2. Confirm the status of the mobile phone card.

Make sure that the balance of the mobile phone card is sufficient, if the payment is in arrears, please restart the mobile phone after the recharge is successful. Check with your carrier to see if the data limit has been met or if the data network function is enabled. If necessary, you can change the SIM card that can access the Internet normally to confirm.

3. Check the mobile phone signal.

If your phone uses a metal, magnetic case or bracket that has an impact on your phone's signal, we recommend that you remove it and try it. If you are in an underground parking lot, elevator hall and other environments, the coverage of the mobile phone signal is susceptible to these environmental impacts, the signal will be relatively weak, and the data network will also be affected, so it is recommended to go to an open area, such as an outdoor open environment for testing.

4. Check the network permissions.

Please go to Mobile Phone i-Manager - Traffic Management Traffic Monitoring - Network Management or Set Application and Permissions - Permission Management to check whether the application network permission has been enabled.

5. View the virtual private network.

Please go to Settings - Other Networks and Connections - Virtual Private Network, check and confirm whether the virtual private network is used, and if so, it is recommended to turn off and try again.

6. Check the network settings.

Please go to Mobile Network Settings - Mobile Network (SIM Card Information and Settings - Corresponding SIM Card) - Access Point (APN) or Set Mobile Network Dual SIM and Mobile Network - Access Point (APN) and click"Reset to the default settings"restart your phone.

7. Re-search the network.

Please go to Settings - (Other Networks & Connections) - Airplane Mode - Turn on and off.

8. Reset the network settings.

Resetting network settings will delete the connection records of WLAN, mobile data network, Bluetooth and other networks, you can go to Settings - System Management - Backup and Reset - Reset Network Settings - Reset Settings - Follow the prompts to operate (you need to select the corresponding SIM card when dual SIM).

Note: Go to the cloud service - data synchronization - turn on WLAN, Bluetooth, etc. to synchronize data to the cloud service. Go to "Cloud Services" -- Device Cloud Backup -- Backup Data Type -- Open "System Data" -- Return to the previous page -- Back up now to back up some system settings data.

9. Reset all settings (do this when you can't see the reset network settings menu).

You can go to Settings - System Management More Settings - Backup & Reset Factory Reset - Reset All Settings - Restore, Restore Settings option. This operation will not delete the file or software, it will cancel the password and restore all settings, including: wallpaper settings, unlock style, wifi, default opening programs, etc.

You can back up before the operation: go to cloud service - device cloud backup - backup data type - system data - return - backup immediately to back up some system settings and desktop layout; Cloud service--Data synchronization--Turn on WLAN, Bluetooth, etc. to synchronize data to cloud service.

1. The reasons why the mobile phone is turned on the data network but does not display and cannot be used may be as follows: the mobile phone card is not plugged in properly and the contact is poor; The network signal cannot be searched in the location or the network signal is unstable; The mobile phone card, card slot or mobile phone terminal is damaged; The status of the mobile phone card is abnormal (such as shutdown, closed account, etc.); The mobile phone terminal card slot 1 does not support the network.

2. You can try to solve the problem in the following ways: turn on and off the mobile phone and restart it to test; You can re-search the China Unicom network in a different location; Whether the mobile phone card has enabled the Internet access function; Verify that the mobile terminal supports the carrier network being used; If the above methods still cannot solve this problem, it is recommended to contact local customer service or consult the official customer service of mobile phone for understanding.

1. The reasons why the mobile phone is turned on the data network but it does not display and cannot be used may be as follows: the mobile phone card is not plugged in properly and the contact is poor; If the location cannot be searched, the network contains a signal or the network signal is unstable; The mobile phone card, card slot socks or mobile phone terminal are damaged; The status of the mobile phone card is abnormal (such as shutdown, closed account, etc.); The mobile phone terminal card slot 1 does not support the network.

2. You can try to solve the problem in the following ways: turn on and off the mobile phone and restart it to test; You can re-search the China Unicom network in a different location; Whether the mobile phone card has enabled the Internet access function; Verify that the mobile terminal supports the carrier network being used; If the above methods still cannot solve this problem, it is recommended to contact local customer service or consult the official customer service of mobile phone for understanding.

If you cannot access the Internet, you can use the following methods to troubleshoot the situation:

1. Please make sure that the mobile phone card is not in arrears and is shut down.

Please make sure that the mobile phone card is not in arrears and is shut down, and you can confirm it by dialing **. If your phone is in arrears, please top up your phone bill and try to connect to the Internet.

2. Please make sure that the ** card for surfing the Internet is set correctly.

1) Swipe down from the top of your phone screen to bring up the shortcut menu and check if the mobile data icon is lit.

3. Please try after restarting your phone.

Sometimes, temporary network failures may cause you to be unable to access the Internet through data services, turn off airplane mode, or restart your phone to see if it can be restored.

4. You can't access the Internet when using a VPN.

If you see a key icon in your phone's status bar, you may be using a VPN. You can search for VPN in the settings, find and enter the VPN settings interface, and it is recommended to disconnect the VPN or turn off the VPN software according to the actual situation.

5. Try to change your current location.

It is recommended to compare the surrounding mobile phones with the same operator's SIM card, if this phenomenon is present, it may be that the network quality in the location is poor and the Internet cannot be accessed, and it can be restored to normal after changing to other places.

6. Some apps cannot use mobile data to access the Internet.

2) The wrong date may cause some applications to fail to resolve the server to use the network, it is recommended that you set the date to automatic: please open the search box at the top of the mobile phone settings and enter "date", click the date and time to enter the Duan Xuqin setting interface, and turn on the automatic setting switch.

G mobile phone can't access the Internet after turning on the 5G switch.

The 5G network is still in the early stage of construction, and there are problems with the compatibility of the 5G network in some areas, resulting in the inability to access the Internet after the mobile phone turns on 5G, it is recommended that you temporarily turn off the 5G switch: swipe down from the top of the mobile phone screen, call out the shortcut menu bar, press and hold the mobile data icon to enter the settings interface, and turn off the 5G switch.

8. The Internet of Things card cannot be accessed by the traffic card.

Due to the difference in contract information, some IoT traffic cards require a specific APN to access the Internet.

9. Internet access is not available during international roaming.

1) If your ** card cannot access the Internet when roaming internationally, please swipe down from the top of the mobile phone screen to call out the shortcut menu, find and hold the mobile data to enter the settings interface, and make sure the data roaming switch is turned on.

2) Please consult the customer service of the **card operator: whether the network of the operator you roam in your local area has opened the data roaming service, and whether your ** supports the use of international roaming mobile data.

10. Try resetting the APN and resetting the network settings.

If this is not the case, take the following steps to try:

1) It is recommended to open the settings, enter APN in the search bar at the top, click the access point name to jump to the mobile data settings interface, click the access point name again, and then click the three dots button in the upper right corner, and select Reset to default settings to try.

If the above troubleshooting does not resolve your issue, we recommend that you back up your data in advance (WeChat QQ and other apps need to be backed up separately) and bring the relevant purchase voucher to a nearby Huawei Customer Service Center for maintenance. <>