If you want to delete the Google account from a D1 either to sell your terminal, give it to a relative or friend, recycle it or if you have decided to switch to another Google account, you can do so by following the steps indicated continuation.
When delete the Google account from D1 we deactivate the FRP (Factory Reset Protection) of the operating system Android 6.0 Marshmallow, this is a protection that links the FinePower D1 to a Google account so that when it is rebooted or blocked due to loss or theft, ask for the Google account username and password.
To delete the Google account go to the settings of your FinePower, it is the icon of the gear wheel, we look for the section "Google" or "Accounts", the accounts linked to this FinePower D1 will appear, delete the desired account.
After you delete the account, you may want to reset the D1 to its factory state and thus eliminate all data from the FinePower, to do this from "Settings" click on "System", then "Reset settings", then "Factory data reset" and finally "Delete all".
This is the method for unlink Google account from FinePower D1 and erase all your data from the system settings.
Another more drastic method to erase the Google account in a FinePower D1 would be doing a hard reset or factory reset. It is a drastic method because in addition to deleting the Google account it resets the FinePower to its factory state and has to re-optimize all applications which takes more time than a simple deletion of Google account.
About the device:
FinePower D1 is a device with a dimensions of 67 mm (millimeters), 6.7 cm (centimeters), 0.22 ft (feet), 2.64 in (inches), and a screen resolution of 480 x 854 pixels.
It has a processor ARM Cortex-A7, a RAM memory ARM Mali-400 MP and an internal memory of 4 GB (gigabytes).
The FinePower D1 it comes from the factory with the operating system Android 6.0 Marshmallow