: Re-flashes the controller’s Instruction Service Program (ISP) to fix internal logic errors. Write-Protection Removal
This is a repack of for PS2251 controllers (UP19) – a must-have tool for fixing corrupted USB flash drives.
If an attempt fails, check the Windows Task Manager for hung processes like MPALL_F1_9000_v372_0B.exe and terminate them before restarting the tool. phison mpall v3720b ps2251 flashboot repack
Before you download or run the tool, you confirm your drive uses a supported Phison controller. MPALL is hardware-specific; using it on a Silicon Motion or Alcor chip will not work. Download ChipGenius or Flash Drive Information Extractor. Plug in your USB drive.
Run MPParamEdit_F1.exe (the parameter editor) first. This allows safe configuration. Before you download or run the tool, you
MPALL accesses hardware at a low level; many antivirus programs flag this as suspicious behavior.
| Mode | Type | Result | | :--- | :--- | :--- | | | Standard Drive | One single removable drive. This is the standard configuration for a USB stick. | | Mode 7 | Dual Drive (Encrypted) | Two drives. One public (visible) and one secure/encrypted partition. | | Mode 8 | Virtual Switch Drive | Two partitions, but only one visible at a time. A special tool or "door" is needed to switch between them. | | Mode 21 | Bootable CD-ROM + Storage | Two drives. One is a "CD-ROM" (from an ISO image), and the other is a standard removable storage drive. | Plug in your USB drive
: Supports 4-channel memory management and bad-block management. Utility Purpose