Usb Device Id Vid 058f Pid 1234 ((full)) Full Jun 2026

Assigned to Alcor Micro Corp. , a major manufacturer of USB controller chips.

The internal software microcode on the controller chip is corrupted due to sudden power loss or improper removal.

This Vendor ID belongs to Alcor Micro Corp. , a major manufacturer of USB flash drive controller chips. PID 1234: This is a default or placeholder Product ID. usb device id vid 058f pid 1234 full

sudo badblocks -v /dev/sdX

If you have critical data on the drive, . The flashing process completely overwrites the translation layers of the memory cells. Assigned to Alcor Micro Corp

⚠️ Low-level formatting will permanently erase all data on the drive and can even "brick" (permanently damage) the device if done incorrectly, so it should be a last resort.

Disclaimer: Repairing flash memory tools requires caution. Improper use of Alcor MP tools can permanently make the flash drive unusable. This Vendor ID belongs to Alcor Micro Corp

The drive is detected as a letter (e.g., G: ) but shows "0 bytes" of space and cannot be opened.

Sometimes the issue is driver-related rather than hardware failure:

Alcor Micro is a prominent semiconductor company specializing in USB-related controllers, including:

You don’t need working drivers to identify the hardware. Use these methods: