Some soldering steps take place close to pieces of the case. Be very careful where you set your soldering iron so as not to damage the plastic parts! Also watch out for flux spatter.
During the soldering and assembly process, certain parts will become “tethered” together by wires…always pick up and move these parts together, don’t let pieces hang by the wires…this could damage parts or solder joints.
Don’t be confused by the colors here. This sequence is three of the jumper wires, not the serial data cable!