What should I do if my mobile phone data connection is lost?

1. No data found on the mobile phone. What should I do?

If Samsung mobile phone can't access the Internet with data traffic, it is recommended to do the following steps: 1. Check whether the SIM card has GPRS internet service or is 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 online service of data traffic.

2. Check whether the "Move Data" switch is turned on. Slide your finger down the curtain at the top of the screen and turn the Move Data pointer green.

Please change a calling card. 4. You can also try again at another time or in a network environment. 5. Back up mobile phone data (phone book, text messages, pictures, etc. ) and restore the phone to the factory settings. If the fault still exists, it is recommended to send the mobile phone to the nearest service center for testing and maintenance.

2. What if the data connection of the mobile phone is not displayed?

Try to restart the phone or set the network port.

Menu-mobile phone settings-connection-data communication-data account-add account-"PS data-enter CMWAP and click the left button to continue.

APN :cmwap point determination point saving.

Phone Settings-Connection-Internet Settings-Internet Mode-New Mode

Point add, name: WAP connection mode: CMWAP point save, indicating that the new mode has been established. Move down to WAP: then click

More, select settings, connection mode: CMWAP using proxy: yes proxy address: 0 10.000.000. 172.

Port: 80

3. Why can't the mobile phone connect with data?

Hello:

According to your description, since you didn't provide the specific model, we suggest you try the following methods:

1. It is recommended that 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: 10.0.0. 172.

4) Port: 80

There is no need to set anything else, and then press the menu key-Save. Finally, you can see your new project in the name of the access point. After selecting, try to restart the phone.

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 service to make an appointment:

/reservation

4.vivo mobile phone data cannot be connected.

It is recommended to check the following methods:

1. Please call the SIM card operator first to confirm whether the phone is in arrears or whether the data access function is enabled;

2. Confirm that the "Data Network" switch is turned on.

3. Try to get online after restarting the phone.

4. Check whether the networking permission of the software is prohibited.

5. It is suggested to try again with another SIM card or change the network environment (that is, change the place) and time period.

6. Enter Settings-More Settings-Backup Reset/Restore Factory Settings-Restore all settings and try again (please rest assured that this operation will not clear the data of the mobile phone).

5. Why is the data connection open and there is no signal?

If there is no signal on the mobile phone or an emergency call prompt is displayed on the screen, the suggestion is: 1. Turn off the phone, restart it, and try to search the network again.

2. If it is a dual-card mobile phone, please check whether the SIM card is activated: Settings -SIM Card Manager -SIM 1/SIM2- Click the SIM card icon-Slide to open (the operation of different models of mobile phones may be slightly different). 3. If there is still no signal, it is recommended to turn off the mobile phone, take out the SIM card, clean the SIM card chip with an eraser and reinstall it.

4. If it doesn't work, please try to change to another location to rule out whether it is caused by poor signal coverage at this location. 5. Try to change the network mode to 3G or 2G (automatic connection mode is not selected).

Note: Some machines do not support changing the network mode. 6. Try to replace another SIM card.

7. Update the mobile phone system version: Settings-About the mobile phone (about the device)-Download the update manually/automatically (software update/system update-update). Note: Please back up data (contacts, information, pictures, etc. ) in the device.

If there is still no signal or emergency call after the above operation, please take the purchase invoice, maintenance card and machine to the nearest service center for inspection.