Oppo R7 Plus delete your Google & Gmail account

OS: Android 5.1.1 (Lollipop); ColorOS 2.1

CPU: Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)

Display: 6" inc

Camera: 13 MP, Single

Remove a Google account on Oppo R7 Plus

You need to be sure to remove your Google account from your phone if you transfer the phone to another user and do not want him to get access to your mail or other Google services.

What happens after deleting a Google account?
All data and content associated with the account will be erased, including emails, files, calendars, and photos.
You won't be able to use Google services that require you to sign in to your Google account (such as Gmail, Drive, Google Play or Calendar).
You will lose access to subscriptions and content purchased through this account on Google Play and YouTube (for example, applications, games, music, TV series).

How do I remove a Google account from my phone?
Open the Settings app on your phone.
Select Accounts and backup.
Click Manage Accounts and delete your account.