I have had the Spark 3 watch for 2 and a half years. The keys are locked, the time remains fixed and does not recharge. I discovered that I have to wait for it to download completely, turning off, so by connecting it to the PC it reloads and updates. It is not always possible to wait for the shutdown to be used. Thanks to those who give me a decisive answer or do I have to throw it away?
Mod edit: Machine translated [ Italian ]