indeed it would be very interesting to know

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SAN, NAS, RAID, Server, and HDD Data Recovery.

I see, thank you.

this is totally diff. scenario

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Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein

Then do you have another opinion about this?

I said: When drive powers ON it compares both keys the one on drive SA with the MCU if both match then data will be decrypted if not matching data will be encrypted.
and i link this statement with the enc. pattern when we try diff. donor PCBs (means diff. keys) with the same drive. try it, compare it and then you will understand my point here.

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Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein

I doubt it does any comparison.
Data is decrypted using the MCU key even if it is not native. Decryption will be wrong of course, so data is garbage in this case, but still decrypted.
and as you say, you get different decrypted data with different mcus, this lines up with my interpretation.

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Adatmentés - Data recovery

@einstein9, if there is a copy of the key in the SA, then why do you need the patient MCU at all? Just install the donor PCB + donor MCU + patient adaptives on the patient HDA, recover the key from the SA, and then write the key to the donor MCU, or decrypt in software.

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A backup a day keeps DR away.

I tested it myself, writing Native Key to donor MCU ----> drive worked normal as native mcu/pcb (procedure takes time)

@fzabkar

"if there is a copy of the key in the SA, then why do you need the patient MCU at all? Just install the donor PCB + donor MCU + patient adaptives on the patient HDA, recover the key from the SA, and then write the key to the donor MCU, or decrypt in software."

Just install the (donor PCB + donor MCU) which are ONE + patient adaptives which is ROM here
donor PCB/MCU has Diff. key here.

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Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein

Yes, of course, that's what I meant. But you didn't answer my question. If you can extract a copy of the patient's MCU key from the patient's SA, why do you need the patient's MCU?

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A backup a day keeps DR away.

In another form, if you write native ROM to another SATA PCB data is encrypted why?

because PCB MCU KEY & HDD KEY are not the same.

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Kuwait Data Recovery - UNIX GTC
The only reason for time is so that everything doesn't happen at once. By: Albert Einstein

"in another form"???
if it is there, what prevents you from decoding it and use it with the donor mcu?

or you don't want to talk about it, that's perfectly understandable as well, just say so.

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Adatmentés - Data recovery