I purchased my Active 2 about a month and a half ago. Everything was working perfectly until a few days ago. There was an update involved and ever since it stopped tracking my sleep cycle. Everything else is working fine. I searched the community forums and found that a few customers were able to restore this function after a hard reset. With few options I decided to do the hard reset. My Samsung wearable still does not register my sleep cycle. I hope a new update is available soon to fix this bug, a lot of people seem to be having the same problem.
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