Mptool _top_: Phison Ps2251-07-ps2307-
This error code is a classic sign of a communication or initialization failure. It often occurs after a failed mass production attempt or a power loss during a file copy. First, try using Phison’s ModeConverter utility, which can sometimes reset the drive mode and resolve this without a full mass production. If that fails, a more advanced technique is to physically “short” two specific pins on the controller chip to force it into recovery mode.
The PS2307 was famously part of the "BadUSB" security research. While older chips like the PS2251-03 were easily reprogrammed to act as a keyboard (HID), the has more complex coding requirements and lacks the same level of community-developed custom drivers. View topic - I have a problem with my generic Phison USB.
A specific string of hex characters (e.g., AD DE 94 A7 42 48 ) that identifies the exact NAND memory vendor and generation (Hynix, Toshiba, SanDisk, Kioxia). phison ps2251-07-ps2307- mptool
: The drive allows you to read files but rejects any deletions, partition adjustments, or formatting attempts, displaying a permanent "Disk is Write-Protected" error.
| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Write CID fail | Your firmware BIN file is wrong. Try a different version (e.g., ST-Tool). | | 0x1106 | Bad block overload | The NAND flash has too many physical bad sectors. Your drive is likely beyond repair. | | 0x2001 | No drive detected | You didn't activate Bridge Mode. Reseat the USB or short the test pins. | | 0x3003 | Read flash ID fail | The controller cannot talk to the memory chip. Check for cold solder joints (reflow with heat gun) or physical damage. | | Time Out | Bad USB cable/port | Use a USB 2.0 port on the back of your PC (avoid front panels/hubs). | This error code is a classic sign of
The is a powerful, professional-grade utility that can work miracles on seemingly dead USB drives. However, it is the opposite of plug-and-play. It demands patience, research, and a willingness to risk permanently killing your drive.
: The chip contains a MaskROM (permanent code) and internal RAM, but lacks embedded flash memory for firmware; instead, it loads firmware from the NAND flash it manages. If that fails, a more advanced technique is
The Phison PS2251-07 is an entry-to-mid-range USB 3.0 to Flash micro-controller. It handles data management between your computer's USB port and the internal NAND flash memory chips.
Working with these tools is notoriously fickle and can result in several common errors:
: If the drive is stuck in PRAM mode, standard flashing often fails. In extreme cases, hardware "test mode"—shorting specific pins on the controller to force it into a flashable state—is required. Security and "BadUSB" Context
