Visit myaccount.google.com on your phone’s browser. Touch Device activity & notification in the “Sign-in & security” section. Review devices may be removed by selecting a device in the “Recently used devices” box and tapping Remove.
To do so, open Google on your Android phone or tablet and go to your Settings menu. Manage your Google Account. Go to the top of the screen and select Security. Select 2-Step Verification under “Signing in to Google.” You may need to sign in again. Tap Revoke all under Devices you trust.
Select Remove from Trusted Devices from the notification bar. Select Sign out on the menu to confirm that you wish to remove the device from trusted devices.
Visit your Google Account. Select Security on the left navigation menu. On the Your devices panel, select Manage devices. You’ll see tabs for devices that you’re currently signed into your Google Account on. For further information, choose a device.
If you want to be safe, the procedure is very simple. Simply go to Google Android device manager and sign in using your Google account, then access the Device activity & Security Events page. Select a device and press it until it disappears.
