hi everybody
i have this disk hm500ji. When i received it, the HDD knocks. I have changed heads and clear A-List but every time
i change disk boot with same difficulties. I can always read haeds with 0, 2 and 3, but with difficulties. Head 1 never works,
so i assume that it has a surface problem.
After cloning for 30 min with H0,2 and 3 the hd begings to knock and the log of serial port tells me that the head 1 has errors.

this is the log

*PA VID=0007 PN=0000 Rev=0004
*PA VID=0007 PN=0000 Rev=0004
PSL
U
S_0Shock Sensor Circuit Enabled
SO_1
Shock Sensor Circuit Enabled
Init RPM=1350
Handoff RPM=1342
SPOK
mS1 00000003
A1O=27 A1G=452
O=513 S=-2
SK C: 4662 H:0
Scan BS ..
Boot Sector Error! Take a default.
Loaded FIT ( 0: 0: 1)
Reso Table Loaded
RRO1X Read OK
| 115 | MOVLY001 | 1 | 0 | 10 | 1140 |

S_0AP:1 C: 812-> 812 H:0->1
SR:0
UF 3 1stGrayErr
SK C: 3156 H:2
SR:1
AP:1 C: 3156-> 812 H:1->1
UF 3 1stGrayErr
SK C: 3211 H:2
SR:2
AP:1 C: 3211-> 812 H:1->1
UF 3 1stGrayErr
SK C: 3045 H:2
SR:3
AP:1 C: 3045-> 812 H:1->1
SoUL!
PK_1 C: 3045 H:1
A1O=27 A1G=449
O=513 S=2
***** No Gray
SoUL!
PK_3 C: 0 H:1
A1O=27 A1G=450
O=513 S=0
SK C: 9122 H:2
AP:1 C: 9122-> 812 H:1->1
UF 3 1stGrayErr
SK C: 9134 H:2

S_2 00000FFF 000000C8 00000000 00000000AP:1 C: 9134-> 812 H:1->1
SR:0
UF 3 1stGrayErr
SK C: 8534 H:2
SR:1
AP:1 C: 8534-> 812 H:1->1
UF 3 1stGrayErr
SK C: 8339 H:2
SR:2
AP:1 C: 8339-> 812 H:1->1
UF 3 1stGrayErr
SK C: 8358 H:2
SR:3
AP:1 C: 8358-> 812 H:1->1
SoUL!
PK_1 C: 8358 H:1
A1O=27 A1G=451
O=513 S=-2
***** No Gray
SoUL!
PK_3 C: 0 H:1
A1O=27 A1G=451
O=512 S=-1
SK C: 9086 H:2
AP:1 C: 9086-> 812 H:1->1
UF 3 1stGrayErr
SK C: 10589 H:2


Is it there a way to turn off H1 (besides turning off in DE) and work with the others?

Does disk init by itself, or you make hotswap to get access?

the disk init by him self