rip 5tb wd blue
2016 - 2018
for 1.5 years, you sat on a nice dry shelf, unpowered. why are you unreadable now? at least the drive isn't completely fucked - but it might as well be when it's catastrophic data failure, leading to nothing being able to be read again.
edit: yes I have a backup, only thing lost was a nice 50GB image of my T480's original HDD from the factory, in case I needed anything from that.