Man… ya’ll had me kinda worried about replacing that thing. Yea, it’s a little fiddly and there are lots of connectors, but it’s really not that bad. Had it done in under an hour.
The trick is to have plenty of light, tome tweezers, and ABSOLUTELY TIP THAT BEAST ON TO ITS FACE. If I had try to do this with it upright it would have been a godawful nightmare.
Toolhead internals were SLIGHTLY different than the video I watched (I think he had a H2D) - but the process is pretty clear once you understand the whole procedure is just getting below those two boards and keeping your wiring in the right spot.
Either way glad it’s done. Died after about 1000 hours of PLA only printing so I guess high-temp isnt the only thing thats runs these things out.