How to detach FineVu/BlackVue device? How to remove a dash cam mount?

How to detach/attach dash cam: 

How to remove dash cam mount: 

Every Purchase From BlackboxMyCar Gets You:

Free 1-Day Canadian Shipping
on Orders Over $150

Free 4-5 Day US Shipping
on Orders Over $150

100% Free YouTube
Installation Guides

Fast, Professional Response
Under 24 Hours

Hassle-Free Warranty & Exchange

No Taxes, Duties & Brokerage
for US Customers