Nokia Nseries :: N8 Is Dead After Last Update?

after an update with Nokia suite yesterday night my N8 wont start anymore. after initiating the update (25.xxx) it was downloading and starting the update. after a while it end with an errormessage. I do exactly remember but it was something like critical connection error. remove cable and restart the telefon for restoring your N8. After this the update will continue. But nothing like this happens. The n8 wont start. It vibrates on time and the display stays black. When i connect with USB cable, the windows USB connection sound appears and after about 5 seconds the disconnection sound appears. thats all. The charging LED is flashing for a while and after about 1 minute this also stops. Pressing the on/off button for abput 10 sec its vibrating 3 times and thats it. I bought this N8 in Libya. It had an aribic language set. I dont do any flashing or other experiments. But some days before i installed some Qt installation files manualy from the Qt symbian 3 development kit on the phone. I have done this for testing some small test applications which i produced with this kit. Maybe these causes the corruption of the phone. But the main question is how to wake up the phone? In the country where i am now is no Nokia service center available. But when i connect with USB cable two device driver are activated with name Nokia parent/generic flashing device