Great guide. Only problem is that the battery on mine was in a neoprene sheath and had swollen. It was a bit of a problem to get out. There didn’t seem to be room to fit something to push it out without damaging wires or the motherboard. At the risk of a fire, I worked it back and forth and pulled with a pair of needle nose pliers. Yes there were sparks and some smoke. I did it outside and knew I was risking the whole thing catching on fire. Luckily it went ok.