2TB Western Digital WD20NMVW Model USB Hard Drive With Bad Heads Recovered

A teacher at a local college needed the data off this 2TB Western Digital drive. This particular WD20NMVW drive had the USB port built onto the printed circuit board of the drive. So instead of being able to connect it to my PC-3000 and diagnose the drive, the first step was to get a new printed circuit board (PCB) with a SATA connection that was compatible.

Once the donor board arrived I moved the ROM over from the old PCB to the new. This allowed me to see that 1 out of the 8 heads was not responding. A visual inspection showed no damage being caused to the platters, so I continued with recovering as much data as possible on the drive. The total recovered with the single bad head was 88%.

I gave the customer the option to stop at the 88% recovered mark for the Standard+ Rate, or continue with a head swap to go for all the data. Because the data was important, they decided to continue with the head swap and get as much data back as possible. I placed the order for the donor head stack drive.

Once the drive arrived that contained the donor heads, I found that although everything seemed to match, the heads were not compatible due to a difference in the pre-amp. You can view the pre-amp information using the PC-3000 and viewing the ROM module 0a. You can see that the pre-amp is different in the pictures below.

Here are two 0A rom mods – patient and donor. the 4th character in the line after the model is the pre-amp. So in this case the |N| S J M, and |N| S S R

0A rom mod
0A rom mod

I had to order a second donor drive and requested the pre-amp be double checked before shipping. The second donor arrived and everything was in order and I continued with the head swap. Once the replacement heads were installed I was able to get back the missing 12% and ended up recovering 100% of the sectors on the drive!

I moved the data to a new drive and I was able to meet the client at the coop in Arlington! They were pleased to get all their data back.

If you need help recovering your drive, please request a quote and I will get back to you with what I think would need to be done to get the data off your drive.