Thank you for your question, my name is ***** ***** I look forward to assisting you.
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This is usually an issue with the Firmware, so I would first like you to do this please.
Hold the power button for 60 seconds.
Release, then try to turn on the S1.
Let me know the results please
Thanks, ***** ***** offers the call option which you can ignore.
It is likely the seal broken which allowed moisture in and then shorted out the battery.
You can have any watch repair center fix this for you, it is cheaper then a repair direct from Garmin.
Take it into any store that provides watch battery replacements, they can then replace the battery and apply a new seal for the watch to keep out the moisture.
If you do not know of a store near you, provide me your details and I can locate one.
If you would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.