In various places (Q: reserved and locked for MS office) properties show this drive as a USB device and give its correct model. Drive manager showed it as drive 1, and unallocated. I altered its cache setting and it vanished, never to return.
In the meantime, the PCB developed a hot spot. Hot enough to avoid putting one's hand on it for very long. Buggah. It was getting hot via the mains adapter 12/5v? supply. Thank goodness. Don't want the laptop to fry via the USB supply.
The screws holding the PCB on the base of the drive are intended to stay put. Hemispherical star drive. It'll be worth a look at the other side before binning it.
I've never worked on a Gigabyte drive, just old MB sizes. I doubt working under shrink wrap would cut it these days. Once, I serviced a drive on a nothing to lose basis after it was reported to squeal. I found about three thimbles full of oil in there! The company had been oiling its bearing regularly. It was after all an 80 Mb drive, and so very costly.