Hi sir... i have the same problem and i did some digging... i think the +pin is the one on the far right and the -pin is the second one from the left... its like this on the galaxy gear1.. i havnt gotten around to trying it yet but will let u kno when i do.. i would apreciate it if u also tried and shared your findings maybe we can save our watches 2gether... i have a galaxy gear fit sm-r350