Firstchip Mptools Chipyc2019 'link' -

If your MPTOOLS version fails to detect the flash chip automatically, you can manually specify it:

Choose Standard Scan or High Scan . Avoid using Clear + Factory options initially; while they may show a higher capacity, they often fail data verification passes.

Look specifically at the and Controller Part Number lines.

Watch the progress bar. The utility will erase the NAND chip, check for bad sectors, write clean controller firmware, and format the drive.

In practice, when MPTools reports ChipYC2019 , the underlying controller is most likely a or FC1179 .