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You're going to think I am joking but I am not. Multiple people have sworn to me that this works for a common failure mode of HDD drives and I've literally never heard someone say they tried it and it failed. I've never tried it. Buyer beware. Don't blame me if you fuck up your drive / your computer it's connected to / anything else even worse by doing this:
This only works for specific mechanical failures, and I'd say about 25% of the time. It works because metal shrinks when cold, and this can sort of let a drive limp along for a short period of time to get small amounts of data off.
Drive clicking is the drive arm malfunctioning, and I wouldn't expect the freezer trick to do much if it's a messed up actuator or something. You already know the drive is bad though, so why not.
Clicking drives can also sometimes be recovered wirh this method.
I think the clicking in that specific case comes from the fact that the drive sends the arm / heads to the parking position immediately when the rpm of the platter doesn't match expectations, because rpm is critical for keeping the distance between head an platter.
Meaning the heads are ok, but clicking because a seized up bearing or motor doesn't spin properly.
Be aware though, it is theoretically possible that ice crystals can form from air humidity condensating, which can cause the head to crash into the platter which makes the data definitely unrecoverable.