Hello gurus.
Updated my HGST HUH728080AL5200 from A907 to AD05 (A4GNAD05.zip) firmware. Flashed with seatools.
Now drive show 0 capaticy, have no SMART and fully unusable. Utility show updated FW version but thats all.
HUGO-7.5.1.win64 able to read FW version.
Any idea for recovery steps?

Are you able to find your original firmware or something in the A9nn series? Do you have a second HDD with A9nn firmware?

I have extracted the modules from your firmware update package (see attachment). It tells you which components were changed. I know it doesn't help you, but it may help someone else.

https://files.hddguru.com/download/Firmware%20updates/Hitachi/A4GNAD05.zip

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A backup a day keeps DR away.

Try to use wdckit with --fastformat option, it can return drive original capacity

fzabkar
Thanks, will try. What SW i should use to dump current FW?
Have no same drive and found no A9 fw to download. Will take eye at ebay, maybe broken drive to sell there.

napalm_atx
All application reported "device not ready", Windows as well. Seatools used for update also see drive, fw rebision, but crashing with any action (test, smart).
SAS controller reported 0 capacity, can see drive model.

This script dumps the firmware modules of older HGST SAS models, but I don't know if it works on current models.

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A backup a day keeps DR away.

Sg tools shown device is busy for most of action.

Look like found issue: sanitize going so drive locked until completed. Percent increasing. Will wait an day, very slow.

Resolved.
Sanitize unlocked drive after complete. Uninterruptable after started, cannot be canceled.
Status\progress shown with sg_requests from SG Utilites.
Thanks for help.

Does the sg_raw script work now?

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A backup a day keeps DR away.

All i started after works as expected. Did capacity alligner with sg, passed.
I didn't dumped fw because drive found new owner. He rushed me so sent asap.