Use FC1179 MpTools for newer chips. The latest stable version is often cited as v1.0.5.2 , while newer betas support more flash types.
To successfully revive your USB drive, confirm these three things: Firstchip Mptool Download
*Did this guide help you fix your drive? Let us know in the comments below which version of the tool worked for you Use FC1179 MpTools for newer chips
I understand you're looking for a guide to download and use (Mass Production Tool for USB flash drive controllers, typically from vendors like Firstchip/Microchip, often used for AU699X, AU698X, etc.). typically from vendors like Firstchip/Microchip
These tools are provided "as is." Flashing firmware carries risks. Proceed with caution and backup any accessible data if possible.