To answer the question for those wanting to revert, power the deck down, then hold the … button and power it up. Select the second option (B) and your deck will load back up in the previous version.
Thank you, but after restarting it goes back to 3.5.5, even disabling the wifi, do you know how I can prevent it from doing this?
It shouldn’t autoamtically update…
Update: So I finally stuck with the 3.5.5 update because after trial and error here is what happens:
Upon reboot: Card is not recognized, requires formatting.
Click and make it go to sleep and awaken again: Card is fine, or is fine with a duplicate entry.
This is a good card, and has been the same one since I got the device. This doesnt give me great confidence, so I am going to back it up when I get home, but I will continue using it and see how it works out.
For those wondering: I will use clonezilla and make an image archive of the whole device rather than simply coping the files.