Clicking "Start" executes:

Click the button (or press Spacebar) to initiate the mass production formatting process.

The official tool limits you to 1–4 ports. A "hot" edition can unlock up to 16 ports. Go to Setting → System → Max Drive Count and set it to 16. However, ensure your USB host controller can handle the bandwidth.

: Set this to No Pretest if you only want to flash firmware, or Erase All / Low-Level Format if the NAND has extensive bad sectors. Disk Type : Set to USB DISK .

Once configured, hit the button. Warning: This will completely wipe all data and rewrite the firmware. Do not unplug the drive until the status bar turns green and says "OK." Troubleshooting Common Errors

Your MP Tool version lacks a definition for your specific flash chip. Solution: Try a newer (or sometimes older) version of the tool. The universal "通杀包" (omnipotent pack) bundles multiple tool versions in one archive, increasing your chances of finding a compatible build.