|Try another machine. If it fails there also, you have a faulty device. As you state, encryption will keep you from obtaining the file contents. |
As we always suggest, can you restore from a backup?
The question is not "IF" a device will fail, it is "WHEN" it will fail.
Even knowing the password, the encrytpion method will keep a hacker busy for a long time trying to restore the file. If you know the method used and possibly the second (hardware) key, you have a very good chance of restoring the file.