Au87101a Ufdisk |work| Jun 2026

Download a trusted low-level hardware scanner like or ChipEasy . Plug in your flash drive and scan it to look for the following precise fields: Controller Vendor: Alcor Micro Controller Part-Number: AU87101A / AU87100 / AU89102

Ufdisk is a flexible vendor-specific AP tool (Application Program) used to segment, password-protect, or partition Alcor-controlled USB keys. It interacts directly with the controller's partition tables to perform specialized modifications: au87101a ufdisk

| | Controller Model | USB Version | Channels | CE Count | ECC | | :--- | :--- | :--- | :--- | :--- | :--- | | Alcor | AU87101A | 3.0 | 1 | 4 | 72bit/1KB | | Phison | PS2251-09 | 3.0 | 1 | 4 | BCH ECC | | SMI | SM3268 | 3.0 | 1 | 8 | BCH ECC | Download a trusted low-level hardware scanner like or

If you see any combination of these, your drive is stuck in the . The drive turns into a permanent read-only volume

The drive turns into a permanent read-only volume. Attempts to format, delete, or create directories yield a write-protection error that cannot be bypassed via traditional Windows Registry overrides.