Content Updates my version is 2.10.310
That sounds like the firmware version of a MyCloud EX device. This is the forum for the simple MyCloud; they’re quite different devices, and have their own forums. You may be better off asking your questions there:
https://community.wd.com/c/network-attached-storage
Oh yes: as with all deleted data problems, you should stop using the device as much as possible, otherwise you risk overwriting the deleted data.
