A few months ago I bought pre-formatted 2TB harddrive from Weaknees for my Mom's TiVo Roamio [OTA-only, with TiVo Lifetime-prog guide] that had stopped working. After I replaced the drive the Roamio again worked fine for a couple months.

...until a week ago, when it died again, with the symptom showing "everything boots up normally till it stops working and the light just flash" (the same thing it was doing before I replaced the HD). Based on that, it doesn't seem likely to be a power supply issue. And I can't believe that a new HD died after such a short time.

Do you have any thoughts on the bad unit?
Possible repair? -- another new HD, power supply, other?
Possible junk?