I am desperate to retrieve the filesThat's 2+ yrs of accounting and I don't think I could backtrack it
Try to press and hold the USB stick while reading ... or wiggle a little ...
From the sound of it, I don't think it's getting power. It may very well be just a cold solder on any of the power pins (Vcc or Gnd). If that's the case, it's a simple fix.
I would not try fumbling with it any further. Continued USB insertions/removals might really mess up the flash memory.
Good working flash-based drives can lose their contents if they remain unpowered/unused for too long (Usually manufacturers claim ten years). Usually their overall lifetime though is limited by the number of writes done to the device and why it'd best to leave some space for the drive to be able to wear itself evenly by doing new writes to that empty space and just marking overwritten parts of the data already on the drive as deleted instead of actually deleting and rewriting the data on the same set of blocks it was previously in.(many if not all devices nowadays already do this by reserving a chunk of your storage).
It doesn't seem like the Cathy wasn't using the drive, so failure from non-use is likely not the cause.
But the fact that even the LED doesn't light up makes it seem like it's a power supply fault. If that's addressed, hopefully the drive should immediately work again. I've had thumbdrives that failed on me that still powers up, but is no longer detected by the host computer.
Yes I regularly use the USB drive. It's admittedly stupid of me that my files are on the USB drive instead of my laptop![]()
Always have multiple copies if it's critical. My wife uses OneDrive + a USB Drive for backup.
The laptop she uses is also backed up to my server using Veeam. So even if the current file gets corrupted, there's still a slightly older copy somewhere in retention she can come back to.