If the data is priceless (family photos, thesis, business accounts) and software fails, stop tinkering. Professional labs can desolder the NAND chip and read it directly. This costs $300–$1200.
Before attempting fixes, check Device Manager: au87101a ufdisk
If you see AU87101A specifically, your computer recognizes the controller chip but cannot load the correct driver or access the storage partition. If the data is priceless (family photos, thesis,
If the Mass Production Tool is too intimidating or the drive still shows the correct capacity (e.g., 32GB), you might simply have a partition table error, not dead firmware. If you see AU87101A specifically , your computer