How do I use my Google account when I have a FIDO U2F Key attached? I have recently attached a FIDO U2F Key to my Google Account to make it more secure. 
How can I now actually log into my Google Account on Android again? 

Whenever I try to log in, it says wrong password, even though I know it is the right password. Does anyone know what is required to get it working again?
Use a application token:

If familiar with Two Factor Auth. /Multi. Factor Auth. on Github or Bitbucket and use a ssh token essentially the  exact same thing.

May I recommend using google authenticator  ---which by default creates  10 OTPs (one time passwords) that can be used if the FIDO is not pre registered.