- Head to Google's Android Beta programme website from the Nexus smartphone or the Pixel tablet. Mind you, the version can only be installed in those devices that are currently eligible for it.
- Sign-in with your Google account connected with the particular device.
- Hit on 'Your eligible devices' find your device and hit on 'Enrol device'.
Note: The device's data won't be wiped off while upgrading. However, if you opt out while being in Beta version, all user data from the device will be wiped off.