firmware update for the C550 Bluetooth

Changes from version 3.00 to version 3.10:
Resolved phone disconnect issue.
Changes from version 2.80 to version 3.00:
Improved phone ring-tone support
New special pairing mode for some phonebooks
Improved support for text messaging
Changes from version 2.40 to version 2.80:
Improved Bluetooth support for various phones.
Changes from version 2.20 to version 2.40:
Improved Bluetooth device search results.
Added support to review SMS messages sent from the Garmin device.