My XT Di2 derailleur is not shifting so I'd like to strip it down to have a look and see if there's anything I can repair. It's a longshot, as it's probably a circuit board or something unserviceable, but no harm in looking.
However, I can't get in as it uses tri-wing heads on the screws for the cover. I've tried with torx, flat head and anything else I can find, but they're pretty small and seem quite tight, so have had no luck.
Does anyone know where you can get a screwdriver to fit? Any tri-wings advertised look a bit too big. I'm surprised that Park don't make one - maybe Shimano told them not to?
However, I can't get in as it uses tri-wing heads on the screws for the cover. I've tried with torx, flat head and anything else I can find, but they're pretty small and seem quite tight, so have had no luck.
Does anyone know where you can get a screwdriver to fit? Any tri-wings advertised look a bit too big. I'm surprised that Park don't make one - maybe Shimano told them not to?