Seagate terminal diagnostic issue - need help

[raf-pl]

Dears,

I have big problem with the drive Seagate ST98823A.
Due to no detection I suspected the head issue.
After head stack replacement I have noticed that problem still exists and the heads are ok. PCB also.
This is what I see through the terminal:

Interface task reset
1024k x 16 buffer detected
MASKROM - 1_Disk M-20 12-07-03 15:39

F>

I am not strong with terminal diagnosis. Could you help me to diagnoze this problem?

Regards,
Rafael

[quasimodo]

Always check Terminal before thinking about heads swap. Looks like heads should be fine. Take a look at your firmware, what tools do you have, if any?

[raf-pl]

Hi,

thank you for reply.

I have PC3000 PCI. The drive is not detected.
In the terminal I can see F prompt and cannot change the level.

When I put some commands I can see: :"no valid cert code detected"

Regards,
Rafael

[Mikippp]

Hi,
Are you sure that you are using the PCB from the original disk...?
PS Try use this ROM
http://files.hddguru.com/download/PC-30 ... J3RVLT.rar

Mikippp

[raf-pl]

Hi Mikippp,

you are right. I use donor PCB (same model and firmware).
Is this ROM suitable for FW:3.04?

Regards,
Rafael

[Mikippp]

Hi,
the-firmware-for-st98823a-needed-t12352.html#p80969
If the drive is a SATA drive, you can try this Merc2 ROM

Mikippp

[raf-pl]

Hi,

I have replaced the ROM. This is what I can see through the terminal:

Interface task reset
4096k x 16 buffer detected
MERC2 - 1_Disk 0.05 01-20-06 15:53
Head Mask 07,01 - Switch to full int.
Spin Ready
Dwell Cyl - 085D/089E/08B2
ERR Read App Code

After it the F prompt is being showed.
I can not change the level.

I assumed I have the wrong ROM file, but I changed the PCB from the same model+firmware and the situation is the same.

Could you help me please?

Regards,
Rafael

[quasimodo]

It has nothing to do with ROM.

search the forum, you will see that your answer has already been posted in the past.

P.S. Look for some of Doomer's posts, he has posted some good comments which have allowed me to better understand how seagate drives function.

Good Luck