First, run cosmetic inspection of the logic board. The logic board bears no deformation or water damage issue.

Next, let's assemble the phone and test. Get the logic board and display assembly installed. Connect the battery and press the power button. Battery percentage in the upper-right corner displays as 10%.

Plug in the charging cable. The lightning bolt shows up on the screen. After charging for 10 minutes, battery percentage in the upper-right corner still displays as 10%, which indicates that the charging circuit has malfunctioned.