Problem with video on samsung (fullscreen)


I used two method to display video on ionic 2 (and 3).
For doing this, I test two ionic application found in good tutorials on the web.

1 - with an iframe =>
2 - with the api youtube =>

In ths two cases, it works very well with a lowcoast smatphone (alcatel) with android 6.

But It don’t work on several samsung (with the two method).
The problem is when I am in fullscreen, the screen is always black even if I can hear the sound of the video.

Could you help me to solve this problem ?