Lenovo A770E mobile phone data connection is disconnected

Hello. We apologize for the inconvenience!

1. It is recommended to turn off wifi and only turn on data traffic;

2. Verify whether you use power-saving software to automatically switch the power-saving mode in the state of low battery or nighttime, resulting in data traffic disconnection;

4. It is recommended to change the place with a good mobile phone signal and try to connect to the data connection;

5. If you have the conditions to replace other SIM cards, it is recommended that you change the SIM card for comparison and use, if the individual SIM card cannot be connected to the network normally, it is not excluded that it is a compatibility problem, it is recommended to contact the operator for specific testing and processing;

6. If the above operations cannot be improved, and the network can be connected normally before, it is recommended to back up the fuselage data to try to restore factory settings, if it is invalid, it is recommended that you take the time to go to a nearby Lenovo authorized maintenance station for specific testing and processing. Inquire about authorized maintenance sites on the official website.

You are welcome to contact us or visit Lenovo at any time

Consult to find out.

Dear users, hello!

This is the Lenovo FAQ knowledge base, which has a relatively complete answer and know the process and analysis:

Take a look at your Le's security--》software network management, where data access is enabled.

If there is any other security software, see if it is there.

I also associate the internet signal with intermittent connections.

Me too.. I can't get on the Internet!

Hello, sorry for the inconvenience.

If you have other wireless networks nearby, please try to compare:

a. Other networks can be connected normally, you can judge that the mobile phone system and hardware function are normal, please try as follows:

1. Number of wireless network connections: It is possible that the current network connection uses too many users, resulting in the inability to use the network normally, it is recommended to try it during idle hours;

2. Wireless network signal: When the wireless signal signal is weak, it may lead to the inability to connect normally or the connected application cannot be connected to the network normally, it is recommended to move the mobile device to the strong wireless network signal to try;

3. If the above suggestions still cannot be improved, it is not excluded that the compatibility between the routing equipment and the product is caused, and it is recommended that you replace the wireless network or routing equipment to use it;

b. If other networks cannot be used normally after being connected, it may be caused by abnormal system or hardware functions

1. Please go to System Settings ---Wi--Settings--- Advanced --- keep WLAN connected in the hibernation state, select "Always" and "Never sleep", in addition, please check to confirm whether the fuselage is set to power saving and other modes, if there is a suggestion to cancel the attempt;

2. Please back up the fuselage data and try to restore factory settings;

3. If it still cannot be improved after recovery, please take the time to go to the local maintenance site to test and process the system and hardware.

If the conditions are limited and you cannot compare with other wireless networks, it is recommended that you conduct a simple investigation based on the above suggestions, and if it cannot be improved, please send it to the repair site in time.

You can visit the official website for inquiries:

You are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

IDEA Forum.

Think Forum.

Lenovo Community.

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.

Restart it, it doesn't work, try it with someone else's card, and then it doesn't work, restore the factory settings.

If you have other questions in the follow-up use process, you are welcome to contact us at any time or visit Lenovo Lewen (for consultation.

You can't go to work with your card, otherwise why can't you access the Internet? Can you use wifi to see if you can access the Internet?

The common problem of this machine You re-insert and unplug the mobile phone card to try Mine is like this Every time you have to re-insert the card It's good I'm going to ask for telecom tomorrow.

Take a look at it in engineering mode, take a look at the network in the mobile phone information, switch the mobile network access point in the settings to cnnet, and it is impossible for a normal machine to be unable to access the network.

I didn't turn on mobile data.