Rotate camera such that battery door is facing upwards. Open battery as if you normally would when changing batteries

Bend paperclip such that metal is now a thin rod

Align rod portion of paperclip with pin located at bottom of battery door. Gently push on pin with rod such that rod replaces pin underneath battery door as shown in first picture

Be careful with spring located with pin as this may fly off when being pushed out by paperclip.

Using tweezers, gently pull pin out from opposite end of paperclip. When pin is fully removed, remove paper clip.

Battery door should now be fully removed from battery slot.