Lenovo A390T mobile phone card can not use the Internet how to do?

Networking as one of the basic features of Android smartphones, the wireless network and mobile phone card can be connected to the Internet. While wireless networks have great advantages, not every place has a wireless network for us to use. At this time need to use mobile phone card to surf the internet, although the speed is not fast, but also to pay operators a certain fee, but the signal is guaranteed under the premise of access to the Internet anytime, very convenient. Only mobile phone in the course of use, may be unable to use the mobile phone card access to the situation, at this time can refer to the following operations:

1, first of all to ensure that the phone does not exist arrears, and opened the Internet function

2, to ensure that the phone card does not appear damaged, can be replaced by mobile phone card to other mobile phone is the use of observation

3, to ensure the use of peripheral signal good, such as signal difference can contact the local operator consulting

4, to ensure that there is no arrears and has opened the Internet function, confirm that the data connection has been turned on. On the main page, slide the hand down from the top, pull down the status bar, and observe the status of the data connection. The arrows in the middle indicate that the network is turned on, and Gray indicates that it is turned off.

5, if the "Data connection" has been opened, still cannot access the Internet. Reference path "Settings-more-mobile network-access Point name" Select the appropriate mobile card to see if there is an operator's access point. If no access point, can refer to the path "system settings-more-mobile network-network operators-Search Network" (also optional "automatic selection"), according to the mobile card select the available network to search again.

6, the System network settings without any problems, to ensure that the installation of the flow monitoring software set the daily limit of traffic or closed the software network services, such as Lok Security software.

7, without the installation of the corresponding software, you can first back up the important data of the mobile phone, through the path "settings--Restore factory settings" after the restoration of factory settings to observe the use.

If you follow the above method to rank, still can't surf the internet we can send mobile phone to Lenovo after the sale into the inspection and maintenance.