pour avoir fureté sur le net, ça semble souvent lié à des problèmes de température et/ou humidité (pas mal de plongeurs qui semblent avoir eu le souci...)
au final,
Summary of Charges:
CAMERA WILL NOT TURN ON. FLASHING BATT. INDICATOR WHEN CAMERA IS ON OR OFF WITH BATT.

Your product has been examined and it was found that a component in the power supply had come loose causing the battery to short. The loose component was repaired.

ou

"Your product has been examined and it was found that the circuit board did not operate properly. The circuit board was replaced and product functions were confirmed."