Firmware update for X35

[Mr Chips]

I live in the Portland OR metro area and will eventually need a firmware update on my Mahle X35 system. Does anyone know of a shop in the region that can do this? Also, has anyone serviced the freehub? I have tools and experience with lots of freehubs--Easton, White, Phil, King and others--but won't touch what I can't see an exploded drawing of

 

[Base]

firmware I cannot tell, I do know that the tech video on the freehub part is in this thread https://forums.electricbikereview.com/threads/ebikemotion-x35-freehub-replacement.41026/