First, decide how important the data is
If the data matters and you have no other copy, speak to a specialist before attempting repairs.
Document the symptoms
- The device type and model
- Whether the problem followed a drop or power interruption
- Whether the drive makes an unusual sound
- Whether a backup exists
Assessment before a decision
A drive not appearing does not by itself establish a particular cause. The device must be assessed in context. Request an assessment from H.D.R and discuss options and cost before work begins.
