The drive shows 0MB or a significantly smaller capacity than it should. Read/Write Errors: Constant errors when transferring files.
⚠️ Using this tool will permanently and irrecoverably erase all data on the USB drive. Ensure you have backed up any important files before proceeding.
The drive is not recognized in "My Computer" but shows in "Disk Management."
, users often find MPALL slightly more approachable for "standard" repairs where the flash memory is of decent quality Niche Troubleshooting phison mpall v3700e
Click the button in the main program window. The tool will begin the flashing process. Do not disconnect the drive during this process.
For many of these issues—specifically for mid-2010s era drives using Phison controllers—there is a legendary, albeit intimidating, solution:
This utility is the go-to solution for a range of persistent USB drive problems, including: The drive shows 0MB or a significantly smaller
PS2251-07 (or specific chip identified by ChipGenius).
Configure the Drive Type (e.g., Removable) and File System (FAT32 or NTFS).
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Download ChipGenius to confirm your USB drive uses a Phison controller and, specifically, the .
Extract the MPALL_v3700e.zip file to a simple folder (e.g., C:\MPALL ). Do not run it from the Desktop or a cloud-synced folder.
/68, a USB 2.0 port is often more reliable than USB 3.0 for flashing.
In the Parameter window:
Here are the most common scenarios where MPALL is the right solution: