Ok,problem solved this way:
I used winswup update tool instead of the one found on siemens site.
It has the option to set port and port speed manualy.The update tool from siemens web-site sets the port automaticly and just cant detect the phone.
But winswup gave me the error message:"could not switch on mobile"
I tried to power it on manualy 20 times before it started to flash.
You have to press power key in the right moment.Or just skip the pre-check.
I supose that my cable needs one more wire (it has 3 wires) to let the update tool to do ignition.It is all about the cable,just like cables for C55,some will work some will not.I tried to unlock C65 with one and failed 100 times,and then i bought another one and it worked with no problems.
Thank you for your reply!!!