cuando lo conecto en modo flash no me conecta y me sale esto

XS++ v3.2 Dev1 (Crystal) Ready !
Executed on Microsoft Windows XP

Attempting to open the interface...

TURN OFF PHONE!
Hold 'C' button on phone and connect phone NOW.
You have 30 seconds...

Error: Cannot open phone communication port
Disconnected... Unplug the phone
| Shutting down...