Fairphone 4 - Check for Water Ingress

d. Check for water ingress
Step 1: Lift up back cover and remove back cover.
Step 2: Remove the battery lifting up from the tab at the bottom of the battery
Step 3: Follow the steps to remove the camera explained in section g.
Step 4: Remove PCBA Cover Torx Screws with a T5 screwdriver
Step 5: Check Rear Water Marker