4GB flash sandisk cruzer not detected, just a single flash when plugging in

This thing was pretty good for couple of years and I was really happy with it.I had a password and it was secure etc.

But when I tried to plug it in this morning, It couldn’t be detected at all.

The only thing I see now is just a single short flash of the light and that’s it.

Can not be detected by “device manager” at all …nothing … just a single flash during plugging in in the USB.

I tried many different PC’s … it’s just does not work.

this is usually a hardware failure. it will need to be replaced. 

that’s sad

I lost all of my data