Had my Vivoactive 4 for about 2 weeks, ran faultlessly for the first week lasting 5 or 6 days with a charge, the last week it has been freezing, and becoming inoperable. Did the usual switched on and off but now it won't even switch on. Was paused yesterday and kept dropping connection, and eventually wouldn't repair, and drops in excess of 50% of charge in mins. Displays the triangle on screen and nothing else. Have tried multiple things the Garmin threads including holding for 30 secs, connecting to a computer etc but nothing. No lights on the back of the watch, multiple charging blocks used to try and get it to work (including the ones I have used previously to charge it). At a loss now as to what to do other than to take it back and ask for a refund and buy another product.