How To Fix Errors! All heads are bad!

Errors! All heads are bad! End of test!

This error is one common error appearing during the western digital hard drive auto repair by DFL PCIe Auto Servo. The following are detailed error report:

Current FW Rev   = 5C.3GG
Family Selected: SPIDER
Family  : SPIDER
Choice  FW Rev   = 005C003GFW Rev  :      005C003G
Max  Head Num=4
User Head Num=4
Head Mask:F
Head Map: 00 01 02 03

Erasing Flash……
Writing Flash …..
Write Flash OK!

Reset Drive …..Please wait…..Done.

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 3
Head Mask:E
Head Map: 01 02 03

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 2
Head Mask:C
Head Map: 02 03

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 1
Head Mask:8
Head Map: 03

Reset Drive …..Please wait…..Done.

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 0
Head Mask:0
Head Map:

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 1
Head Mask:4
Head Map: 02

Reset Drive …..Please wait…..Done.

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 0
Head Mask:0
Head Map:

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 1
Head Mask:2
Head Map: 01

Reset Drive …..Please wait…..Done.

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 0
Head Mask:0
Head Map:

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 1
Head Mask:1
Head Map: 00

Reset Drive …..Please wait…..Done.

Write Resident File = 0x0A

Wrote file 0xA and it is a new header format file.

Max  Head Num=4
Current Head Num= 0
Head Mask:0
Head Map:

Reset Drive …..Please wait…..Done.
———————————————————————–
Errors! All heads are bad! End of test!
———————————————————————–
Total Time: 00:03:14

For above error, this is mostly caused by PCB issue, dirty PCB head contacts. Users can use erasers to clean the PCB head contacts. Some times, it can be also caused by head failure, users need to write the factory ROM from the same family and then disable heads and then run selftest again. Any way, the most common reason is PCB on this one, users just need to change one donor PCB with the same PCB number and clean the PCB head contacts, above error is usually fixed.

Any question is welcome to [email protected] or add Dolphin skype ID: dolphin.data.lab