What if the data switch of the mobile phone can't be used?

1. Why can't I use my mobile phone when I open the data connection?

1. The data switch in the system settings is not turned on (not the one that is convenient for setting the drop-down notification bar). Open the settings and check this option (it is recommended to restart the phone after the settings are completed);

2. For some dual-card models, SIM card slot 2 does not support data services. Please use slot1instead;

3. Error in setting APN. It is recommended to call the service provider's customer service to inform the situation. Customer service will initialize APN of relay terminal for my sim number and can send configuration message.

4. In addition, in order to eliminate the error of SIM card, it is suggested to replace this card with another mobile phone and try to open data service. If it is also wrong and cannot be connected, it is recommended to change the card in the business hall (the SIM card may be partially broken after being used for a long time, but it will not affect the call service and may affect the services that need to be set up, such as SMS and data).

Or not:

1, the mobile phone is in arrears. You can check whether the mobile phone is in arrears. If the mobile phone is in arrears, even if the data traffic is turned on, the Internet cannot be accessed. Pay the phone bill and you can surf the internet.

2, the operator's problem, generally this possibility is relatively large. In this case, it would be better to make a customer service complaint.

There is no signal coverage in this area, so there will be no signal. So even if the data traffic is turned on, you can't surf the internet. You can successfully use the network by surfing the Internet in a place with good signal.

2. Why can't I open the cell phone data?

The display of mobile data switch of mobile phone can't be turned on, so it is recommended to try the following methods:

1. Restart the phone.

The display of the mobile data switch of the mobile phone is dim, which may be caused by the collision of the mobile phone, and can be restarted to solve it.

2. Check whether the SIM card is enabled with GPRS Internet service or temporarily closed.

To use the data access function of the mobile phone, the calling card needs to open the data traffic access service. You can contact the local network provider of the calling card to open the data traffic Internet service.

3. Click on the mobile data in the phone settings to see if there are any restrictions.

4. Check whether the mobile phone housekeeper restricts traffic. If the monthly traffic is limited, just cancel this option.

Why can't my cell phone data switch work here? Can be used on other mobile phones.

Hello: According to your description, I suggest you try the following methods: 1. I suggest you turn on the mobile data function through the drop-down box on the top curtain of your mobile phone.

2. Settings-More Settings-Mobile Network-Network Operator-Search for Available Networks-Select the operator corresponding to the mobile phone card. 3. Settings-More Settings-Mobile Network-Access Point Name-Menu-Reset to Default Settings.

4. Check whether you can surf the Internet after restarting your mobile phone through the above methods. If you still can't get online, I suggest you create new online parameters. 1) Settings-More Settings-Mobile Network-Access Point Name-Menu-New APN.

2)APN:cmwap (Mobile Card) /uniwap (Unicom Card) 3) Agent: 10.0. 172. 4) Port: 80 Other settings are unnecessary, and then press the menu key-Save. Finally, you can see your new project in the access point name. After the selection, restart the phone to try.

5. If you still can't access the Internet through the above methods, it is recommended that you restore the factory settings of the machine, as follows: Setup-Reset-Restore the factory settings (however, since restoring the factory settings of this machine will lose all data in your mobile phone, it is recommended that you back up important data such as phone book, videos and pictures in advance). If there are still problems through the above methods, please bring the purchase invoice, maintenance card and machine to Samsung service center, and the engineer will check and deal with the machine.

Please click on the following link of Samsung Service Center Furniture://support/location/supportservice.do? Page = service. Location and place. Cid = _ PPC _ support _ service _ repair _120522 Welcome to Samsung Digital Service Platform: /ask.

4. What if the mobile phone can't use the mobile data connection to surf the Internet?

If mobile data cannot be used, first determine whether it is the following:

1. If you use WLAN to surf the Internet, mobile data cannot be used at the same time with WLAN (WLAN+ function is not turned on).

2. If your mobile phone doesn't support the VoLTE function, you won't be able to use mobile data during the call.

3. If your mobile phone SIM card is in arrears, it may cause mobile data to be unable to access the Internet. I suggest you contact the operator for consultation.

4. If you can't use international roaming outside the country, I suggest you contact the SIM card operator to see if there is data roaming service in the local area and whether your mobile phone package supports international roaming.

If you still can't access the Internet by using mobile data after eliminating the above situation, please follow the following steps to try again:

1. Go to Settings >; Wireless and network >; Mobile network >; Move the data, close it, and then open it again.

2. Check the traffic management settings and enter the mobile phone housekeeper >; Traffic management:

3. Click on the application networking, please check the mobile data in personal applications and system applications, and check whether all applications that allow the use of mobile data have been checked.

4. If traffic saving mode or intelligent traffic saving is turned on, the application will be restricted from using mobile data in the background. I suggest you set it according to your own needs.

5. reset APN settings. Go to settings >; Wireless and network >; Mobile network >; Access point name (APN) >; & gt； Reset to default settings, click Reset to default settings, and then try again.

If your problem has not been solved after trying the above methods, it is recommended that you back up the data and take the purchase voucher to Huawei customer service center for testing.

5. What should I do if the mobile phone data can't be opened?

If the mobile data switch of the mobile phone cannot be turned on, we suggest that you:

1. Try to restart the device.

2. Some machines support super power saving mode. If you start this function, you need to enter the super power saving mode and manually start the mobile data.

3. Check whether the third-party power-saving software is installed in the mobile phone. It is recommended to uninstall before starting to move data.

4. If it is invalid, take out the SIM card and insert it again.

5. Back up the data in the mobile phone (contacts, photos, information, etc.). ) and try to restore the phone to the factory settings.

If the problem still exists, it is recommended that you take the machine, purchase invoice and warranty card to the local Samsung after-sales service center for testing.