Is it not getting power to it? USB connection bad? Or is the solid state memory unit fried?
If it’s not getting power to it you could try to plug it into a powered USB hub and increase the output a wee bit.
Bad USB connection can be fixed with a soldering gun and a new connector.
I’ve yet to find a fix for a sold state memory unit that goes bad…
I don’t actually understand what you mean about thumb drive. When we are talking about thumb drive, we tend to refer to a portable flash disk that could store and access data easily. Accessing the data from a “Thumb Drive” or flash disk is simple as opening the drive letter of the disk.