Not able to add Charge 2 on App, Pairing fail on Android and iPhone both

[sportyamit]

Charge 2 - Not able to add device on App, Pairing fail on Android and Iphone both.

 Steps I am trying to follow:-

1. Go to fitbit app on Android phone(Xiomi mi A1) and go to account.

2. Click on + setup a device and select Charge-2 from list.

3. Click on setup and Accept agreement by click on "I Agree" and click Next.

4. It search and display and 4 digit number on my fitbit device which I enter in app.

5. After that it says connecting but never connect. It keep asking to try again 

Moderator edit: updated subject for clarity. 

[AndreaFitbit]

Welcome to the Fitbit Community, @sportyamit. I´ll be glad to assist with your pairing your Charge 2 with the Fitbit App inquiry. Thank you for mentioning the steps you have tried and for telling us that you have tried Android and iOS.

Please follow steps of help article: Why can't I set up my Fitbit device? What happens when you try on the iPhone?

I´ll be waiting for your response.