Suddendly my Zenmuse X5 on my M600PRO  stopped working. Doesn initialzies whe i turn on the the bird. Only can read when the Sd car is inisde. Any idea?

can you give more information on what it is doing? i have had issues in the past where the connection of the camera to gimbal was bad and had to "jiggle" the handle so to speak for it to connect. i know this is unlikely to help just trying to gather more information.  

Sure!
I always fly with the X5 on the Matrice600Pro
Suddenly one day I wanted to fly , the camera never never initialized when I turned on the M600Pro.
It only recognizes whereas is SD card or not ( red light and then dissapear)
One thing : the SD card stoped working and was damage.
I did everything: firmare, change of battery,firmare of M600
I changed the camera and used theZ3 with no issued at all . Everything is just fine. The Zenmuse Z3 woks perfect with the same wiring of X5