WD5000bevt ROM Transfer

[hddnb]

Hi Guys,

I need your help with transferring ROM content to a new PCB since this one has no seperated ROM chip. One chip on the original PCB was bourned out, as shown in the picture.

Wd5000bevt.jpg (30.54 KiB) Viewed 6108 times

. Or do I have to replace the burned chip? Thank you in advance.

[hddguy]

You will need specialized access to SA of damaged HDD to restore native copy of ROM that is stored there.

[hddnb]

Thank you, HDDGUY. You meant the building ROM from SA function in PC3000, right? I have a donor but the donor PCB cannot spin up the original drive. Is it strange? Then I cannot do hot swap to get into SA. Any good ideas?

[labtech]

Is the donor PCB known to be good? Does it init. its own drive?

[hddnb]

Thank you labtech. The donor PCB is good and is the same as the burned pcb. I found another PCB that is a little different from the burned one and it can make the patient spin up. I will try it.

[labtech]

You can post the numbers from the PCBs here and people can tell you what is compatible with what. Need to post the numbers from the PCB that are etched in green. Should start with 2060-... or similar.

[hddnb]

Thank you, labtech. Both of the original and donor PCB are 2060-701572-002 REV A. Somehow, it does not spin the patient up.

[loki]

Thank you, labtech. Both of the original and donor PCB are 2060-701572-002 REV A. Somehow, it does not spin the patient up.

what do the PCB stickers say ?


Loki

[labtech]

Ok, based on the numbers posted, the boards should be compatible. Now, in order to make progress, your donor board has to be functional. Once establishing it is functional, need to reprogram the donor board with the bad boards' adaptives. To make this happen, you will need advanced data recovery equipment that works with firmware. If do not have this equipment, then you would have to do some soldering. Soldering these type of chips is a very challenging task even for seasoned data recovery technicians, therefore not recommended.

[pcimage]

These newer Scorpio drives sometimes have varying types of headstack and some ROM versions will detect the incorrect type and refuse to spin up the drive, this is most likely the cause of the apparent compatible PCB not spinning your drive up.

As your PCB has no external 8-pin ROM chip then you need a new PCB with a ROM compatible enough allow the drive to spin and gain SA access. Then a new fully compatible ROM would have to be written to the PCB using ROM image information stored in firmware modules on the platters.

All this requires specialist equipment, resources and knowledge.

Or it could be a blown preamp.

Hence NO DIY!!!