when you receive a call, do you currently see the phone number on the band? does it vibrate?
disable incoming call in mi fit and enable it again. might do the trick
no idea, you should have "show contact information" under incoming call.
my guess is you have a permission issue where mi fit doesn't have permission to access your contacts
Exactly same Official, but with only one language (some are availables and I can release other), caller ID work . More informations with threads link in last post.
Just enable SMS notification. No more option like Official. By default Caller ID is show on Mi Band 3 if your language is supported by default, like weather informations.