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Well, I haven't heard anything as of the solutions that were first given to me working. So I'm not sure of anything as of yet, so until then... I have no answers to give you. Sorry!
What you could do is find another drive of the same model and try to swap PCB. But as far as I know it very much depends on the model of the drive. On Maxtors, Seagates it works well, on WD not so much...
I have fixed Maxtor and Western Digital drives this way but the replacement PCB has to be from the same batch to work and to enable access to the data.