Versa 3 won't set up with my new Samsung 21

[Kitkat71]

I have a new phone samsung 21. I downloaded the fitapp and it won't pair up with the watch and it says  on my watch unlock with your phone. And also won't pair up .

Moderator Edit: Clarified subject

[MarreFitbit · Accepted solution]

Hi there, @Kitkat71. Welcome to the Community Forums. Thanks for the details provided in your post about the issue with your Versa 3. 

While reading your post, I was wondering if your Fitbit device was pair to a different phone prior the Samsung 21? If so, your Versa 3 is asking to be unlocked with the old phone, that's why you cannot move forward with the set up process. Since you no longer have access to your old phone, I suggest to perform a factory reset by following these steps:

1. Don’t plug the Fitbit device into the charging cable. 
2. Press and hold the button for about 8 seconds until the screen turns off. 
3. After the screen turns off, you’ll feel a short vibration:
   1. When you feel the vibration, release the button and immediately press and hold the button again.
   2. Wait until the blue logo appears, then disappears:
      1. Immediately release the button and then immediately press and hold it .again, until you feel a vibration.
      2. After you feel the vibration, release the button. 
         • This vibration indicates you started the factory reset. 
         • After the Fitbit logo appears, the Fitbit device shows the image with the phone icon and setup indicator. 

If you change again your phone in the future, please make sure to remove your Fitbit device from the phone's Bluetooth settings to avoid this from happening again.