Patched drivers can force a device to open COM ports that are normally hidden by stock firmware.
| Issue | "Best Patched" Solution | Details | | :--- | :--- | :--- | | | Apply a kernel patch or use the usb-storage driver | A community patch was under development to address the ext4 data corruption bug. Alternatively, you can force the drive to use the more compatible usb-storage driver instead of the problematic uas driver. | | Automatic Blocking | Create a USBGuard rule | If your system uses USBGuard (a security tool that blocks unauthorized USB devices), you can create an "allow" rule to whitelist this device. | | Identifying the Issue | Check dmesg logs for kernel messages | Run dmesg \| grep -i "usb\|346d\|5678\|ext4\|corruption" to see the specific kernel messages. |
When users look for a "patched" version, they are usually looking to bypass manufacturer restrictions to repair IMEI numbers, remove SIM locks, or restore a hard-bricked device.
Typically very low (sequential writes under 1MB/s in some cases)
: Select Auto or cap it manually to what the Flash ID scanner in Step 1 reported as the true total capacity (e.g., changing a fake 128GB drive down to its real 8GB limits). 5. Executing the Flash vid 346d pid 5678 best patched
correspond directly to generic USB flash memory devices manufactured by , commonly distributed under unbranded labels or names like VendorCo Disk 2.0 . These flash drives often run on FirstChip controllers (such as the chipYC2019) combined with Hynix or similar low-cost NAND flash memory.
Often holds community-maintained patches or forks of older drivers.
However, if the L300 must be used with N Computing software, source the drivers, ensure the SHA-2 code signing support is active, and prepare for a manual driver installation via Device Manager.
For controllers, look for FirstChip MpTools V1.0.2 variations (such as package editions from 2018 through 2020). Patched drivers can force a device to open
| Key | Type | Value | Description | | :--- | :--- | :--- | :--- | | | String | pci14e4,4353 | Tells the system the device is compatible with the Apple driver. | | device-id | Data | <00521343> | Injects the device ID (Little Endian format). | | name | String | pci14e4,4353 | Patches the device name. |
The identifiers correspond to a generic USB 2.0 flash drive mass-produced by Shenzhen SanDiYiXin Electronic Co., Ltd (often branded under the placeholder name "VendorCo").
FirstChip FC1178BC MpTools V1.0.2.10 2018-04 ... - USBDev.ru
Users have found that these generic drives suffer from poor sequential performance on standard FAT32 formatting. | | Automatic Blocking | Create a USBGuard
A common issue with these specific IDs is "capacity spoofing," where a drive might report 64GB but only physically hold 16GB. Tools like are used to verify the "true" patched capacity. Speed and Reliability According to user-submitted benchmarks on sites like NirSoft's USB Speed Database
To maximize the benefits of patching while minimizing disruption:
The first and most reliable source for patches and updates is the official website of the device's vendor. Manufacturers typically provide driver updates, patches, and firmware updates here.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. USB 3.0 Flash Drive Speed Tests - VID = 346d, PID = 5678