Those tools are able to retrieve the relevant MODs from the SA in "low speed" mode, using a non-native PCB. These MODs are then used to regenerate the ROM image, after which the image is flashed to the PCB.

Fix Identification Problem caused by Corruption of ATA Overlay module or ROM content (ROYL):
http://www.salvationdata.com/blog/fix-i ... m-content/

Case Study on WD ROYL Drive Using WD Utility (regenerating ROM data)
http://www.salvationdata.com/blog/data- ... y-tools02/

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A backup a day keeps DR away.

Yes, I've read the claims

My point (which I obviously failed to communicate clearly in my previous post, so I'll try again ) is that the OP has chosen not to get a replacement (i.e. non-native) PCB, despite several recommendations to do so!

Without that, and using only a previously suspect (and now faulty) original PCB, I wouldn't bet that the software you mentioned will "do this job" (as you put it) with only that original PCB and its unknown fault(s). See what I mean?

Of course there would be more options, if only the OP had taken the earlier advice (first mentioned by poehere) to get another (working) PCB...