Help with Seagate Momentus 100G

[TerraNova]

I have a Seagate Momentus SATA ST9100824AS , thru terminal it shows these error messages, not sure what it means, i guess it is head problem?

Any idea gurus? Would head exchange fix the problem and get data?

Interface task reset
4096k x 16 buffer detected
MERC2 - 1_Disk 0.02 12-
Buzz - 16-05 13:52
Head Mask 0F,01 - Switch to full int.
Spin Ready
Dwell Cyl - 061D/040E/041E
(P)(H)SATA R
Restore

ACFC started 3/2

CorrectWriteStart
AT Er 00 Nwt Er 1c RdWr 0507b.03.0197
ATA St 90 Er 01 Op 00 0,0000/0/00,00 01 00
Niwot: 0420dd52 14 0420dd52.0.000 8000 0532 0068 0000
Spare of 0420dda9 failed
0420dda9 can't be fixed
Failure of 0420dda9 can't be fixed

CE Log ErrCode=1c LBA=420dda9 Type=1 Add To Pending 420dda9

ACFC started 3/2

CorrectWriteStart
AT Er 00 Nwt Er 1c RdWr 0507b.03.0198
ATA St 90 Er 01 Op 00 0,0000/0/00,00 01 00
Niwot: 0420ddaa 14 0420ddaa.0.000 8000 058a 0068 0000
Spare of 0420ddaa failed
0420ddaa can't be fixed
Failure of 0420ddaa can't be fixed

CE Log ErrCode=1c LBA=420ddaa Type=1 Add To Pending 420ddaa

ACFC started 3/2

CorrectWriteStart
AT Er 00 Nwt Er 1c RdWr 0507b.03.0199
ATA St 90 Er 01 Op 00 0,0000/0/00,00 01 00
Niwot: 0420ddab 14 0420ddab.0.000 8000 058b 0068 0000
Spare of 0420ddab failed
0420ddab can't be fixed
Failure of 0420ddab can't be fixed

[prodata]

if you need data I suggest change head.

[TerraNova]

Hi Prodata site code and firmware must matched for head exchange right? Thank's