You will need to open an account with the HB website to register your unit (maybe you have already done this) ...
http://www.humminbird.com/Support/MyHumminbird/register/After your HB account is activated and you have logged into your HB account ...enter your unit's serial number under your account ...
Then you will see the most recent available software version for your specific unit ...
And you will also see a download for Humminbird PC ...
HBPC is waypoint management software for editing, adding, and organizing your HB waypoints ...
After you have HBPC downloaded to your PC ...browse the Help file at the top of the program opening page for the HBPC user manual ...
And you can ask questions here also ...
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I know of no way to repair the sockets in the head unit without sending the unit back to the factory ...
Let me know if you need contact mailing info for international and I will see if I can get Deb (from HB) to step in and help you with getting your unit thru the correct channels to get it fixed ...
Rickie