If you’re facing a situation where one of your staff members has lost his 2FA login secret for Zistemo and needs to recover it, you may need to change password as part of the recovery process.

As a Regular User
As a regular user with role of data capture, team member, team leader and admin please contact your account owner to switch off the two factor authentication for you. After that you can login with username/email and password only. Wen logged in, you can enable two factor authentication again.
As an Account Owner
Only the account owner can deactivate two factor authentication for other users. To turn the two factor authentication for others off, navigate to the user‘s profile settings. On that page you can switch off two factor authentication. 
After that, the user can login with username/email and password only. When logged in, the person can enable two factor authentication again. As an account owner, you can not enable two factor authentication for others.
Recover Two Factor Authentication as Account Owner
If you‘re the account owner and you do not have access to your two factor authentication code, please contact customer service.
Notes
This recover process is in zistemo. However, it might be that your authenticator app provides backup codes or similar.
For security reasons, neither the user nor the account owner can see the 2FA secret. So, the only way to recover the two factor authentication for users is to disable it for them and they have to enable it again.