Have you ever bought any pre-fab 'assemble at home' furniture, and the instructions don't quite match up exactly with the reality of the pieces strewn across your living room floor? Some designer wrote those instructions, some engineer figured out the implementation, and the mismatch means that you are destined to either utilize a bit of intuition to figure out a solution, or pack up all the pieces and haul your unassembled tv stand back to the store.
That's this puzzle. There is a solution. It is replicable, and reliable, once you arrive at it. It simply doesn't perfectly match what the designer/author of the repair guide wrote down for instructions. I anticipate that there may end up being repairs with partial solutions, or maybe only hints at solutions, later on. Then, it'll be up to the repair guy to Figure It Out™, possibly based on extrapolation and prior experience.
Do not concede defeat! Learn what you must, and fix those androids! ^.^