Once the process was finished I copied back all the files but now all my videos are on top of the gallery, while the photos are aligned correctly. The date of the photos are correct, the video's ones are not, the copy overwrited the creation date with the actual date.
I tried to modify that in Windows but once I copy them back the date is updated immediately.
Is there a way to fix this?
I tried to edit the info directly on the Nexus but in debug mode I cannot modify anything, I have to copy them on my pc (and if I disable the debug mode I cannot browse the Nexus on Windows)