In order for this part to work, the USB interface on the device must work.Ģ) Once the device is detected, additional information is requested about the device.
Here is how the system works (in general)ġ) Plugging in a USB device will trigger the auto-configuration on the PC to detect the device type and ther information. Here's a PC Mag article on what happens in a clean room Don't forget to try out their drive simulator to see what happened to your drive.
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Attempting to fix this via software won't work and if you are able to get it to respond the process could make things worse. The cost will be expensive and there is still a chance they can't recover the data. It also turns out the HD it's self is hardware encrypted so it will only work with the logic board it is mounted to, so you can't send them just the hard drive internally alone either (need to ship the complete drive with the power adapter). If you have also encrypted your data you will need to give them the application and the encryption keys so the they can decrypt the data. OK now what - If the data is that important you'll need to send your drive in to a data recovery service so they can disassemble the drive in a clean room to try repair the drive long enough to pull your data off (replacing the damaged heads). So the heads likely dug into the platter ripping one or more off and damaging a part of the magnetic surface of the plater (heads crashed). The big issue here is what was the drive doing, was the disk head arm parked or engaged? From the sounds of it it appears the arm was engaged so it was somewhere on the plater/s. Otherwise the file you were accessing is likely damaged.
We don't know if the system was still in the process of writing to the drive (where you in the process of reading or writing a file off of the external drive?) If not then the cache write back is only effected which is a minor issue. And, you failed to dismount the drive correctly. So the drive was spinning when you knocked it.
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Now you can't access the drive, but the device driver and the USB interface internally of the drive is responsive (drives power light is lighting). At that point you unplugged the USB cable and then reconnected (failing to dismount the drive). You were using your drive (PC running Windows Vista) and while it was running you banged it (was on the edge and then it fell onto the flat side).
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