Authentic MHL 2.0 compliant Note 4

To have tested on my Note 4 more cables meant to be MHL 2.0, it is the only authorizes the 1080p 60 Hz other cables remaining confined to 30Hz. Not necessarily critical to the video, but essential for the game. The micro USB socket is longer than necessary, but it plugs properly and tightly in the phone connector (oddly she is better adjusted than taking the Samsung charger of origin).
A few cuts of about 1 sec punctuated one of the few cable using sessions, but I do not know if it's my facility that is sensitive to changes in electric current, or the cable itself .