I believe only fixing the hotshoe would have not helped. The flash is also at the loose hotshoe fixed to his connector.

Think the movement has broken the connector cable or something in the connector. Having the similar hotshoe of the a58 - you remember my training session - I decided to use this.

And surprise it is exact the same with same cable lengths and connector etc. Think this spare can be found also in net at it seams to be a standard component. (I love standards!).