DJI Inspire 1 Landing gear malfunction

I crashed my inspire 1 and the only problem I am having is that the landing gear will not operate in the full range. I brought it in to a local repair but they say now that it is confused as to when the gear is up or down. So they ordered a new center housing and the assembly is just stuck, a problem with the used parts. Anyone have any advise on this issue?

Many thanks,

Houston