Why can't the mobile phone be used and the computer be connected

1、 The data line of mobile phone is connected to the computer , Prompt on the mobile phone “ The host is unresponsive ”, This is because you are connected to a computer USB Interface wiring or front of the chassis USB Interface , Try the... On the back of the chassis USB Interface .
2、 Cell phone connected to computer , I chose “ data storage ” The phone will prompt “ Another program is using ”. Because your phone uses the theme or ringtone of the memory card , The solution, of course, is to put the theme in the mobile phone storage . If you don't use a cell phone C Theme of disk .
3、 The phone can't connect PC Problems with the suite , Just turn it off .
4、 After the phone is connected to the computer , There is no prompt to install the driver , There is no new hardware prompt in the computer hardware . First , You need to insert a memory card into your phone , And format . step ： Set up -- Initial settings -- Format additional storage devices （ Do not insert a memory card , This option does not appear ）. When using a data cable connection W388 With the computer , The phone will prompt ：“ Connect the phone in memory mode ？”, Choice is , The computer will think of the mobile phone as a storage device , The phone screen shows “ In memory mode , The function of the mobile phone cannot be used normally ”.