I thought I would throw this in the mix
I made up a short animation of Boba Fett's chest lights. This is taken from the Carbonite Chamber scene as well as several production photos
so when it comes to doing the FX for his chest lights, Especially outside the Torture Room Scene, you have something to work with. I speculate that the bottom 5 LED Digit sequence starts all 'ON', and just slowly emliminates lights till its fully 'OFF'. There are probably more combinations inbetween, but they would have to be guessed at. The Top set is EXACTLY what it should be doing. Hope this helps.
And yes, the fifth Digit is supposed to look like that. In photos of the costume on display you can see when they placed the lights under his armor, the window wasn't cut to the full length and partially covers up the last digit.