Not a complete guide to follow. Seeing other teardowns, I notice steps are out of logical order and / or missing. The descriptions lack clarity and left retracing my steps to remove parts not previously mentioned. Then there was not caution of the tweezers possibly poking the battery or by removing the volume flex cable from the wireless charging coil requires re-micro-soldering or replacing the charging coil + flex cable.
@jeffsu I rechecked and reconnected several times. Checked sockets, replaced the ribbon cable and I/O board cable. Installed the battery at 35%, it is not holding charge and the MacBook remains at 1% and dies immediately if unplugged. Reconnected the battery and no difference. At login screen Bluetooth mouse and keyboard don’t work but at the disk password login screen the Bluetooth devices work. Macbook’s Trackpad and keyboard still don’t work. What is the solution?
Same here, just replaced the battery tonight precisely following the ifixit guide and the trackpad is not functioning. What is the solution?