I purchased a 6D from Canon Refurbished and actution was 17 using a Apple Mac app called "Shutter Count" so I was pretty excited thinking my body was new. But later I realized my files started at _MG_9025.CR2. So now I'm annoyed.
So much utter BS out there as to shutter count.
9025 is NOT THE SHUTTER COUNT it is the sequential file number left over on your card from another camera.
A 4 digit number will never be used to represent a 50,000+ count shutter!
Only one canon camera series can give the user a correct approximate shutter count and that is the 1DX/C but rounded to the nearest 1000 clicks.
Yes many a software out there boast but only Canon depot software can give you the correct activations and then the currently installed shutter count.