Hello, I have a 4TB Seagate external hard drive that suddenly quick mounting yesterday. I tried on 3 different Macs and same result on all...It has been fine for the last 3 years but now when I plug it in it starts spinning up then stops. That has been the case before yesterday, but it still mounted. It is not showing up in the disk utility either...I have a tremendous amount of data on that drive so it is important that I can access it. Can someone tell me what I should do?
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