Petit partage de mes recherches sur ce genre de panne

- visse baladeuse

- contacts des trappes CF / Batterie

Hi,I can't turn on my 70D, after removing the batt... - Canon Community

7D Mark II camera won't turn on! - Canon Community

https://www.youtube.com/watch?v=DQaejgJM1Rc

7D not always turning on until I remove and replace battery.: Canon EOS 7D / 10D - 70D Talk Forum: Digital Photography Review

https://fr.ifixit.com/Answers/View/58451/won't+turn+on+even+though+battery+charged