I have 2 Flip 4's bought approx. a year apart. The older speaker was exactly as described here. The newer speaker does not have the 5 end screws, instead it has a twist to lock end plate. Make sure the top screws that secured the rubber end are removed, as these will prevent end cap twisting. I used rubber gloves to get a grip and twist end cap counter-clockwise to unlock. I found that if you grip end cap too tight it makes it even harder to twist off. Someone may find a better solution, like prising the tags around circumference, but be warned these look flimsy.