When this happens, the drive will display as an "Unknown Device" in Windows Device Manager, or it will report a capacity of 0 bytes. Recovering a drive from this state requires opening the physical casing and shorting specific pins on the controller chip to force a hardware test mode—a process that can easily destroy the drive if done incorrectly.
Newer firmware revisions check for a digital signature before allowing a flash utility to write new code to the controller. phison ps225109 patched
Phison ST-TOOL V3.81.12_2021.06.18_TW (PS2251-70 - USBDev.ru When this happens, the drive will display as
When the editor plugged the drive back in, Windows chimed. The "Removable Disk" icon appeared. The capacity was back to 128GB. The drive was empty—the data was sacrificed to save the hardware—but the $30 device was no longer a paperweight. Phison ST-TOOL V3
models. In the context of security research, "patched" typically refers to the application of custom firmware that transforms a standard drive into a
ST-TOOL特别适合黑片固件的刷入，因为MPALL无法直接烧录黑片固件。有用户在论坛总结：“使用MP_All进行量产，读写速度不会降低太多”，是首选方案。
Conversely, independent developers use the term "patched firmware" to describe modified versions of the official Phison code. These community patches are used to: