Chances are it's the controller chip that's dead, rather than the actual flash.
If you could replace the controller with one from an identical drive it *might* work. You do have a hot-air rework station for SMD soldering, right?
I'll look into that if I get no joy today with it, thanks!
I'm trying PhotoRec at work today (I can leave it going on a standalone PC, hopefully it won't take 400 hours).
It's a weird one, it eventually got recognised in device manager last night and I could see it listed under the disk drives (at least the manufacturer's stamp) but when going onto the 'volumes' tab it won't populate the volume information on the disk.
It also installs the SanDisk drivers when put into a PC.
3 of them, powered by rainbows.
Could be an electrical issue, might be some cracked solder points at the USB plug. Open it up if you can to have a look inside. Heating the connection up or a dab more solder might fix any cracks.
Good point, I'll find out if it's covered by any guarantee or warranty first.
So I happened to see a later post first; I second the electrical/controller problem ideas. Sometimes if the drive is left in they get clipped by hands or other objects depending on where it is used. At work we had one we used for daily register backups that would only work if one held it in whilst holding one's mouth right. :-/ Stopped using that one.
I've got a 4G I put through a machine wash & dry about 5-years ago. Still works great.
But how's the USB stick?
Ba dum dum tssh...
years ago my daughter smashed the connector right off her homework USB stick - I soldered an old bit of ribbon cable between the two broken parts and managed to get the files off before it was officially declared dead.
Thankfully they're cheap enough these days to only be worth repairing to recover the data, then it should go in the bin because it can no longer be trusted.