I keep getting emails on this post. I wrote the fix which was changing the battery but Samsung took down for some reason. maybe I had link or something that was not inline with posting terms.
You have to do on charging dock cause battery is too weak for start up.
Not all batteries are the same. Some advertise more capacity but not true when tested. Try to get a Samsung or korean, Japanese cells with better quality.
Think of an ice cube tray. cause when you get your new battery you want to condition it so that it last.
Do a full charge, best over night to be sure. Then use your watch DO NOT CHARGE. wait till battery dies totally. then let it settle for about 10 minutes or so. Then try to reboot again. It will come up and die again. Just keep doing every once in a while till it's totally dead and will not boot.
Do a full charge again overnight. and go through the same process again till totally dead. then wait try to boot it again to fully drain.
I did the process 3 times.
It will be like a new watch. brighter, zippier.
Infact, I don't even remember it working this good when it was new.
If you think about everything the watches have, cell , gps, bt, wi-fi, it's pretty amazing that little battery drives it all.
That's it. Also watch has an Oring on back cover make sure it's good and in right place when closing cover. I used a little silicone grease made for o-ring. regular grease is said to eventually degrade O-ring Mine has not had any problems by swimming in pool. Have not tried to go to maximum depth.
sorry I can not point to you to anywhere to get replacement battery cause post will be taken down.
it's a great little watch just have to factor changing battery every year or so depending on your use, if you want it to run optimal. It's still pretty impressive what it does with that little battery and everything going on with that tiny cellphone watch.
Stay safe everyone.
