Since the housing, the battery, and the charging port flex cable used for the test are known-good parts, we need to focus on the charging circuit on the motherboard.

The first thing we need to do is to separate the upper layer from the lower layer. Place the motherboard on the heating platform and fit a screw into the screw hole on the motherboard. So we can take down the upper layer efficiently afterward.

Heat the motherboard for 2 minutes on the heating platform at 165℃.