1. Check whether Windows Media Player is installed in your computer, check whether the version of Windows Media Player in your computer is above 11, if the version is lower, it is recommended to download the latest version of the software.
2. Disconnect the phone from the computer, open Kies software, click to solve the connection problem, reinstall the driver to try.
3. Replace the computer's USB port, desktop computer is recommended to use the USB port at the back of the host.
4. Turn off your computer's antivirus software or firewall to try.
5. It may be related to the computer system compatibility program, you can also replace the other computer to try to connect
.