1 - it's offtopic discussion.
2 - the antenna can be gutting a discharge of static electricity.
3 - in the information about the system which version of firmware gps chip? screenshot post please.
4 - on ebay a lot of 37xx with a broken screen - they are very low cost now
ps I'm sorry that you do not participate in the discussions of these important topics(and other holywar . Active teach the new young garmin engineer, has to do the work of two.