Problem with Dualshock 4 v2

[M'Vi]

Hi,

I just bought a Sony Dualshock 4 v2 controllor to use with my recalbox 6.1.1-Dragonblaze installed on a compaq mini-311.

I paired it in EmulationStation but when the controller is turned on it flash white then blue (and as far as I know it should stay that way) but it stays on only for a second and then it goes black.

Sometimes it shuts down EmulationStation as well.

Any idea of what goes wrong?

Thank you.

[M'Vi]

@M-Vi I don't know why but now it seems to work. I've done nothing special though.

Thanks anyway.