I had a DIRECTV HR24 High Definition DVR Satellite Receiver which displayed a fatal error and I had to have the box replaced.
I have heard that a hard drive recovery utility such as SpinRite (https://www.grc.com/sr/spinrite.htm) could possibly correct the hard drive errors.
My problem is I don't know how to access the DVR's HD, and once accessed, how to connect it to a drive that would run the SpinRite program.
Any ideas?
Steve