The HID file is for your phone. First transfer the hid file to your phone (preferably using bluetooth file transfer). Then navigate to the remote control option in your phone. FOr K750i in SE phones it is available under entertainment section. You should see the "Canola" in the list. Select it and it should connec t0 n800 rightaway if you have paired n800. If it fails, in the same menu where you chose canola, press More-> Select Device
Select n800.