Video recording into sd card

Hello everybody,

I can’t manage to record a video on my sd card, like indicated on this website: https://bananapi.gitbooks.io/bpi-d1/content/en/how_to_record_a_video.html

There is nothing on the sd card, even though the banana Pi D1’s led start to blink.

Has anyone ever had such problem ?

Thank you in advance.

https://bananapi.gitbooks.io/bpi-d1/content/en/