I purchased my forerunner 235 about 9 months ago and until recently it has worked perfectly. Now when I try to plug it in to my PC to charge and sync it will doesn't always connect. Sometimes it will connect fine, but very quickly disconnect. Also the garmin logo will flash on the screen until I unplug the watch. I also tried charging it in the wall outlet with no success.
Take a look at the 4 contacts on the rear face of the watch, you may find they are crudded up with an accumulation of swear and shed skin. If so take a Q Tip and cut the rolled paper shaft on a severe diagonal to make yourself a pointy tool you can fish into those contacts and clean them up.
