One of the many things we do when we receive a case for recovery here at EADR is to send an email to the client acknowledging receipt of their device and informing them of their unique case reference number. Included in this email is a request for the client to let us know how the failure occurred to their device and (more importantly to us) what recovery attempts have already been made. This is what we received back from this particular client:

“The drive is not powering up. The only attempt for recovery was to remove the fuses from the board but that has not helped”.

Now, the eagle eyed and more experienced of you will immediately notice that the main fuse (and there is only one) is still in place, so what has the client removed? Well, if you look to the bottom left and the top right of the PCB (and the 2nd magnified image), located in those now vacant positions should be the ‘Shock Sensors’. These are the sometimes ‘pre-emptive’ sensors that detect if the drive is being dropped or in free-fall, and will automatically ‘park’ the heads (hopefully) prior to the impact on the drive, thus if not saving the actual heads, saving the precious data on the platters that should be undamaged in such a situation.

Needless to say, with this information the case was soon solved, and with some minor firmware works, the case was 100% recovered.

Just another day in the office at EADR…..