1. One is the mobile phone driver is not installed correctly, if we have installed anti-virus software we can try to turn off the anti-virus software after we try to update the driver.
2. If you are sure the driver is OK, let's see if the phone USB is turned on, on the phone: setting-application-Development--USB debug mode is selected.
3. If you install a lot of mobile phone assistants, when you connect the phone and the computer is not other software in front of the pop-up, so we can try to remove the other software and then restart the computer to try again.
4. Mobile phone Assistants will need the net Framework 2.0 (32-bit, 64-bit) Support Oh, we can search for download Baidu.
(The specific method is: Right click on the desktop "My Computer"---"Properties", view the System column can) as shown in the following figure.
5. There is a mobile phone data cable is not a problem, this data cable connected to the USB is not a problem we change a few interfaces to try it.