When used correctly, the SMI Mass Production Tool is the most powerful utility in USB repair. It can turn a "dead" drive into a bootable, high-performance storage device. Bookmark this guide, keep a collection of validated MPTOOL versions, and you will always have the best tool for the job.

: Ensure the tool's database ( UFD_ALL_DBF folder) contains your specific Flash ID.

Here is everything you need to know about using MPtool for SM32x and SM34x NAND flash controllers.