You can change and set your passwords:
1. Tap “ Forgot your password”
2. Tap “Get Code”, check your registered e-mail inbox, you’ll get a 4-digit code.
3. Enter the 4-digit code and your new password and tap “Reset password” in the app.
4. Close the app and open it again.
5. Login to the app with your new password.
The password for the H Band app should contain 6-20 characters, it can be any combination of letters and numbers, for example: 87651234
You can also consider to use “No Account Login” to sign up for the H Band app.