Here is a link to the ifixit repair guide for the [guide|25234|front and top body panel (includes mode dial)] for your camera.
It may be of some help as to ascertain what the problem is.
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Here is a link to a [http://www.ebay.com/itm/CANON-EOS-6D-TOP-COVER-WITH-LCD-AND-MODE-DIAL-REPLACEMENT-PART-A1093-/361727795748?hash=item5438a82224:g:nH0AAOSwLF1X2Awv|supplier] of the part (if you find that it is faulty that is). It is not a recommendation to use them, it is shown to give an idea of the price. There may be other that might suit you better.
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Here is a link to a [http://www.ebay.com/itm/CANON-EOS-6D-TOP-COVER-WITH-LCD-AND-MODE-DIAL-REPLACEMENT-PART-A1093-/361727795748?hash=item5438a82224:g:nH0AAOSwLF1X2Awv|supplier] of the part (if you find that it is faulty that is). It is not a recommendation to use them, it is shown to give an idea of the price. There may be others that might suit you better.
Here is a link to the ifixit repair guide for the [guide|25234|front and top panel (includes mode dial)] for your camera.
+
Here is a link to the ifixit repair guide for the [guide|25234|front and top body panel (includes mode dial)] for your camera.
It may be of some help as to ascertain what the problem is.
Here is a link to a [http://www.ebay.com/itm/CANON-EOS-6D-TOP-COVER-WITH-LCD-AND-MODE-DIAL-REPLACEMENT-PART-A1093-/361727795748?hash=item5438a82224:g:nH0AAOSwLF1X2Awv|supplier] of the part (if you find that it is faulty that is). It is not a recommendation to use them, it is shown to give an idea of the price. There may be other that might suit you better.
Hi,
Here is a link to the ifixit repair guide for the [guide|25234|front and top panel (includes mode dial)] for your camera.
It may be of some help as to ascertain what the problem is.
Here is a link to a [http://www.ebay.com/itm/CANON-EOS-6D-TOP-COVER-WITH-LCD-AND-MODE-DIAL-REPLACEMENT-PART-A1093-/361727795748?hash=item5438a82224:g:nH0AAOSwLF1X2Awv|supplier] of the part (if you find that it is faulty that is). It is not a recommendation to use them, it is shown to give an idea of the price. There may be other that might suit you better.
Hopefully this is of some help.