Key fob gon dead no my fh v5. Replaced battery & stil dead!
Was working ok on Sunday.
One of the connectors that go from the battery to the fob PCB can snap off. I think at ours we usually have 4 or 5 that need to be unlocked manually.
I didn’t take any pictures but if I come across one in the next couple of days I will snap it so you can see what to look for.