If you NEED that data get the drive recovered professionally! Only a month or two ago I had a Seagate that just died on me whilst in use (no physical shock or abuse.) I had noticed a slight clicking
noise the previous day but It went away. I thought it was just the PSU fan as that did click sometimes (It not unheard of in the 1250W Enermax Revolutions.)
Anyway I checked further and on closer inspection I realised it was a drive. So I shut the machine down and left it till the next day. When I started the computer up again my
first task was going to be to back up the data from all the drives, but a cold restart was obviously too much for that HDD and it started clicking immediately and was disappearing from device manager.
I took the drive out as I knew I had a couple of other perfectly functional ones of exactly the same make & model etc. I swapped the PCB's over hoping that, that may have been the issue as the
drive had never been bounced etc, however my attempts were futile as after replacing the PCB the drive made exactly the same noise