Another problem is detection failure where the drive appears in Device Manager but not in Disk Management, or where the capacity shows as 0 bytes. This indicates a problem with the controller's firmware mapping or NAND flash initialization.
Once completed, the status box will turn solid and display a "Pass" message. If it turns Red , the flash memory chip has suffered physical hardware degradation and cannot accept new firmware. Troubleshooting Common MPTool Errors
One prevalent issue is the "Please insert a disk into the USB drive" error. A USB drive may be recognized by the system and display a drive letter, but attempting to access it yields a prompt to insert a disk—even though the hardware is physically connected. This issue often arises after improper formatting or firmware corruption. The solution, as documented by multiple users, involves using the MpTools and selecting the "Finished Product Open Card" (成品开卡) option. Firstchip Yc2019
Are you trying to or just make the drive usable again ?
The Firstchip Yc2019 is a USB 2.0 flash drive controller designed by Firstchip (Shenzhen) Technology Co., Ltd. It is engineered to bridge the gap between a computer’s USB interface and the NAND flash memory (where your data is actually stored). Another problem is detection failure where the drive
Insert your problematic USB drive into a USB 2.0 port (prefer native motherboard ports on the back of a desktop PC). Select your drive from the list.
: Use Windows 10 or 11 with administrator rights. If it turns Red , the flash memory
If the tool doesn't see the drive at all, the physical NAND chip may be dead.