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Nikon D300 and silica gell

Do you have the latest version A 1.11 and B1.11?
It could be down to the internal battery not holding its charge which is what I would suspect first or bad contact between en-el battery and camera contact
video explains
https://www.youtube.com/watch?v=vUcxe3DlTIg&t=22s
It could be down to the internal battery not holding its charge which is what I would suspect first or bad contact between en-el battery and camera contact
video explains
https://www.youtube.com/watch?v=vUcxe3DlTIg&t=22s