I've seen older posts on this, but no real solutions. Plugged my 235 in this morning to charge and nothing. Tried cleaning contacts, changing charging block and outlets. Nothing. Plugged it into my laptop and it shutoff. I also had a hard time turning it back on, but finally got it back on. But, the date and time are both way off (6 days and 7 hrs). It shuts off agin each time I plug it into the laptop. Thought if I went outside and connected GPS, it would come back to real time, but no change. Any thoughts.