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So when you confirm it is physical head damage which requires you to perform the head swap to extract the lost data, the next step is to find a donor head or donor hard drive. What’s a donor hard drive for Samsung head swap?
From the old families before Victor, Puma, Verna & etc. ( Max capacity 120Gb, Max Head number 4 ) donor drive for Heads stack has to be chosen by the 4-th symbol on the side sticker which consist from 5 symbols. There are 3 versions of this sticker: xxxAx, xxxRx, xxxSx. 4-th symbol should match on patient and on donor drive, this symbol is responsible for this drive Heads stack manufacturer.
From the families like Palo, Magma, P80M, Delphi and other ( Max capacity 160Gb, Max Head number 4 ) to Poseidon family ( Max capacity 250Gb, Max Head number 4 ), the donor drive could be recognized by other symbols on the top sticker after P/V. There are 2 versions of such sticker: P\V: xS, P\V: xA. As you see the second symbol should be matched. Nowadays this sticker as P/V: xA does not exists on manufactured drives.
There are no symbols/codes responsible for Heads on the HDD stickers for Trident( T133(S)), T166(S), M60(S), M80(S) ) families . But the hard drive manufacturer started to use only “S ( SAE )” heads. So , for this families, the heads stack donor has to belong same family and its heads map should be the same as on patient.
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