To save battery life I disconnected my Epson PULSENSE watch from my phone for a few days. When I tried to reconnect, I always got the error 20-0101-0008. But finally I managed to do it, here is the trick; disconnect completely:
- Tell your watch to deactivate bluetooth
- deactivate the connection in the iOS App
- tell iOS to ignore the watch in the bluetooth settings!
Lastly, reconnect via the Pulsense App. Now everything should run smoothly.