In the world of USB drives carrying the VID 346D / PID 5678, the phrase "best verified" becomes absolutely essential. This identifier is a bit of a wild card that appears in a wide range of devices, making it the perfect example of why verification matters:
In FAT32 configuration, the drive typically exhibits bottlenecked sequential speeds, averaging roughly 6.5 MB/s Write and 19 MB/s Read .
A common issue discussed in user forums is that after flashing, the drive retains the wrong VID/PID. Open the config or setup file in the MpTools directory. Ensure that VID=346D and PID=5678 are specifically set. vid 346d pid 5678 best verified
0x5678 (Commonly assigned to "Disk 2.0" or generic flash disks).
, can achieve read speeds exceeding , though write speeds often remain relatively low, typically between 10–60 MB/s . In the world of USB drives carrying the
Are you experiencing a specific or trying to recover data from this drive? HDD GURU FORUMS • View topic - FirstChip FC2279 BA7
Launch the executable tool (usually named FirstChip_MPTool.exe ) as an Administrator on a Windows environment. Open the config or setup file in the MpTools directory
Save the configuration settings, return to the main interface grid, and click the Start (F1) button.
For highly unstable, cheap memory chips, set the ECC (Error Correction Code) threshold higher (around 12–15) to improve stability at the expense of minor raw capacity.
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Before attempting to fix your device, it helps to know exactly what you are plugged into. Software reports from diagnostic tools like ChipGenius usually reveal the following verified specification: Hardware Property Verified Specification Details 346D (Shenzhen SanDiYiXin Electronic Co., LTD) Product ID (PID) 5678 (Generic Mass Storage Profile) Reported Manufacturer VendorCo (often spoofing Kingston or generic "Disk 2.0") Controller Vendor FirstChip ( parfois listed as Micov ) Controller Part Number FC1178BC (or closely related variants like FC2279 ) Real Flash Memory Type