This repair took me about 45 min for a complete novice. “Walking out” the battery connector was only way I could unplug it. There was a retaining bracket overlaying the flat connector (step 8) that I needed to unscrew (2 screws, phillips) before it could be removed. Take care to replace the wire in the wire guides along the fan’s housing prior to reinsertion of the replacement fan. It cannot be done afterwards and the back panel will not be flush. Otherwise, this was an excellent guide and an easy repair.