SOLVED! Posting a problem with Inspire Pro X5 that i've searched the web for without any results. Just to start a thread in case someone else stumbles over the same issue. Error message says on iPad: "LENS NO CONNECTED". (yeah, great english) In practice, it works kind of like a regular Inspire 1 with an X3 camera. ISO and shutter can be set. However, Aperture and focus doesn't work at all. So touching the iPad display to set focus does nothing, holding down C1 + scrolling left toggle does nothing either. Things I've tried without any success: Disconnect and reattach lens. Update to latest firmware (Inspire 1 PRO Firmware v184.108.40.206 ( Zenmuse X5 Series - Downloads - Manuals, Software, Drivers download | DJI as of today) Switched from stock 15mm X5 lens a Olympus M.Zuiko Digital 12mm. Exact same issue. Things I've tried with some success: Switch the two iPad's (photo and pilot controller). This worked once, have no idea why. Switched to Android controller instead of iPad. (This worked when I had a chance to try, but I don't own an Anroid tabelt myself). Things I've tried that fixed the issue: Pressing the lens pins logic board back into place. See details and photos bellow!