Enable IMAP in your Gmail settings
ÂÂ
- Sign in to Gmail.
- Click the gear in the top right.
- Select Settings.
- Click Forwarding and POP/IMAP.
- Select Enable IMAP.
- Click Save Changes.
ÂÂ
You may proceed to refer to below link for further details on setup on your various type of Smart Phone:
https://support.google.com/mail/troubleshooter/1668960?hl=en#ts=1665018