Solved! Go to Solution.
Coincidentally I was trying to pair my original Galaxy Gear watch to my S21 and I get an "unexpected error"
When the error is displayed there is an option for help which brings you into Samsung Members where you can submit systems logs and even sigh onto remote help. I would do that if I were you.
Galaxy S21 Ultra 512g(VZW), Galaxy Book (original, VZW), Tab S4, Galaxy Watch3 (VZW)
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