Do you know how I can find out what the original firmware was?
I really don't know. Thanks for your help.
The drives were both running on separate channels as Master and Slave.
The primary drive was on the primary IDE channel and the second drive was on the secondary IDE channel.
If drives was on different channels, this is impossible that command were sent to another drive by error
May be your drive simple has died due to another reasons?
Find any ROM that allow you to read SA and read module 11, it contain original FW version
No, It didn't die!
I want to thank you for the advice. I flashed 3 different ROM versions for the model to the donor PCB, The first 2 showed nothing in the SA and FM_ERR_HEADER_II_SIGNATURE_INVALID. The last ROM version I tried just worked!
All the data is still there like I thought and there's no problem reading it. How likely is it that firmware just works? I heard it's not easy to find a ROM that just works without any adjustments. Since each drive is different.
I'm currently copying some of the important data which was stored on the disk.
I still don't know how the ROM was originally corrupted.
I'll check the WDMarvel log file later and see if there's any log of the problem.
I would appreciate if you extend my license for 2 more weeks. Since I was not able to really use your software for the whole month. I will most likely buy the lifetime license in the near future. Since I do plan on working some other WD disks. Thanks.