I'm no expert.
I had 5 Seagate drives in my system (plus others in my wife's computer). I replaced the firmware in two of them -- all was well. The Seagate provided HD checkout software said I did NOT have to replace the firmware in the others. However, one of those failed hard on bootup -- I lost some valuable data and a lot of time (I backup more frequently now).
Now, I look at the very reasonable Seagate prices -- and am afraid to buy. Since the failure, I've been buying Western Digital. FWIW.
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