V3700e | Phison Mpall
You will see a window with tabs: Firmware, Partition, LED, etc.
One secret feature of Phison MPALL v3700e is Mode 14 (Multi-Partition). You can burn an ISO file directly to a virtual CD-ROM drive on the USB stick.
If you have a USB flash drive that has suddenly stopped working—showing the dreaded "0 bytes" capacity, being read-only, or simply not being recognized correctly by Windows—you have likely encountered a corrupted firmware or a failed controller.
For many mid-range and performance USB drives, the solution lies in a powerful, albeit niche, piece of software: Phison MPALL v3700e. phison mpall v3700e
This article is a deep dive into what the Phison MPALL v3700e tool is, how it works, and a step-by-step guide to resurrecting your dead USB drive.
Many Kingston DataTraveler 3.0 drives (e.g., DT 100 G3, DT SE9 G2) with Phison PS2251-03 controllers suddenly show 8MB total capacity. This is the controller entering "safe mode" due to a bad block or unsafe removal.
| Error Code | Meaning | Solution |
| :--- | :--- | :--- |
| 3 | Cannot find device | Reinstall drivers; use USB 2.0 port; restart tool. |
| 5 | Bad flash ID | Auto-detection failed. Manually spec the Flash Part No. |
| 6 | Firmware load failed | Corrupted .bin file. Re-download the tool. |
| 8 | Write fail | Drive has physical bad blocks. Retry with "Erase All" mode. |
| 0x1042 | Boot block error | The drive is likely physically dead. No recovery. | You will see a window with tabs: Firmware
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.
Crucial: Disable Windows Defender Real-time protection temporarily or add the folder as an exclusion. MPALL requires direct hardware access, which Defender blocks.
MPALL versions are strictly tied to the controller version. Version 3700E is generally utilized for Phison controllers from specific generations, often including the PS2251 series (common in USB 3.0 drives) and potentially earlier PS2303 series. If you have a USB flash drive that
Note: Using the wrong version of MPALL on a controller it does not support can permanently brick the device.
MPALL stands for "MP Tool All-in-One," and v3700e refers to a specific version of firmware flashing and low-level formatting software designed by Phison Electronics Corp. Phison is a major manufacturer of USB flash drive controllers (the "brains" inside the drive). Brands like Kingston, Silicon Power, Corsair, and Patriot frequently use Phison chips.
The v3700e version is notable because it supports a specific family of Phison controllers, most commonly the PS2251-03 (also known as PS2303) . If you have a USB 3.0 drive from around 2013–2015 that suddenly stopped working, there is a high chance MPALL v3700e is your golden ticket.