How to open the case on a WD My Book Essential?
There no apparent screws or fasteners, so I believe it is 'plastic snap' lock.
This drive has intermittent power problems and I believe 'something' is loose inside, or I will put the drive in another case (hopefully, at worst).
Regarding the power problem, sometimes when it fails, a light tap on the case makes it power back on.
Is this a good question?