A7: recurring pb with the shutter command

[Fred-L]

I have this recurring problem which is getting more frequent: All of a sudden, when the camera is already on, the shutter command stopped working. The AF doesn't work, no bip and no green focus spot, no shutter action.

It may last seconds, sometimes a minute, and come back to normal with no explanation.

Battery is fully charged, the lens is properly fitted and connected.

 

It is really anoying