W810i Won't turn on

[appie]

Hi,

I have a w810i but it wil not turn on.I tried to flash the phone with xs++ but it says: cannot open communication port.Downloaded usb flash drivers but it don't work.Tried to flas with setool2lite but this als not work.Tried to take the battery out for some seconds but this don't work.Searched on the internet for the soulotion but I don't know what's wrong with the phone.

The computer also can not detect the phone.

Dou have any idee and now how to help me?

Thanks in advance,

Appie