[QUOTE=Ispi;1463121]I'm trying to flash my phone because of "Device not working properly" comes up when i start my phone. I've tried to flash it with windows xp and 7.

Have you tried installing Lumia Software Recovery Tool (Win 7 box only) as should include necessary flashing drivers ( yes, it is compatible N9) for it to recognise device?
http://download-fds.webapps.microsof...lInstaller.exe