use freia10 software to full flash your phone and after that use option unlock with using orginal imei.Use standard siemens cable or solution by bruce.
regards
All the software I tried, is not able to make a connection to the phone.
If you press the red button shortly, nothing happens, if you press it for 1 sec. you will hear that low beep and nothing more.
Any hints regarding the cable? Is the supply voltage of +5 needed?