1. Make sure any data you need is backed up, including contacts.
2. Open your phone’s Settings app.
3.Tap Passwords and accounts. If you don’t see ‘Accounts’, tap Users and accounts.
4. Under ‘Accounts for’, tap the account that you want to remove And then Remove account.
5. To confirm, tap Remove account And then OK.
6. If this is the only Google Account on the phone, you’ll need to enter your phone’s pattern, PIN or password for security.