The best patched driver for this specific device often involves a combination of forcing an older driver to accept a newer operating system or modifying an .inf file to include the VID_346D&PID_5678 signature. Option 1: The Modified INF Approach (Most Common)
According to user reports, these VID/PID combinations are commonly associated with the series controllers (such as the FC1178BC or FC1179). These drives are frequently sold on sites like Ozon and AliExpress as high-capacity, but they often have very slow write speeds and require specific "patched" firmware tools for repair or to unlock their true capacity.
This specifies the exact product model or revision of the chip architecture inside the device.
Upon reboot, press or F7 to select Disable driver signature enforcement . Step 2: Edit or Obtain the Patched .INF File vid 346d pid 5678 best patched
The identifiers and PID 5678 correspond to a generic, often low-cost USB flash drive mass-produced by VendorCo . These devices typically utilize FirstChip controllers (specifically the FC1178BC or FC1179 series) and are notorious in the tech community for being used in "fake capacity" drives. Hardware Identity & Reliability
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This is where the "patched" ecosystem comes in. A patched driver takes the original .inf and .sys files, removes the date-checking, disables the signature enforcement (or adds a test-signing certificate), and unlocks the hardware’s true potential. The best patched driver for this specific device
Search for "FC1178BC MpTools" on specialized flash drive forums to find versions that specifically address the 0.7MB/s–2.5MB/s write speed bottleneck. Key Actions Before Patching
This identifier tells us:
For deep hardware inspection, skip Windows diagnostics entirely and use specialized freeware utilities like or Flash Drive Information Extractor (Anvil) . These tools read the internal microcode directly from the chip, giving you the explicit controller vendor name (FirstChip) and the unique Flash ID code (e.g., AD7E280B00C0 for Hynix TLC) even if Windows refuses to mount the volume. ⚡ Performance Patching: Fixing Slow Transfer Speeds Out of the box, VendorCo VID 346D PID 5678 This specifies the exact product model or revision
Malicious firmware hack on VendorCo controller configuration. Run MpTools with Scan Level 5 (Clean + Factory Setup).
: Large files will yield better performance than multiple small files. Troubleshooting If the drive is not recognized at all: Try different USB ports (specifically USB 2.0 vs 3.0 ).
🛠️ Why You Might Need Patched Drivers or Firehose Files