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Note that this will erase all data, but it is often the only way to make a "bricked" drive usable again. Manufacturer Shenzhen SanDiYiXin Electronic Co., LTD Common Controller FirstChip (FC1178/FC1179) USB Version Typically USB 2.0 (High Speed) Recommended FS exFAT for better speed

If your VID 346D PID 5678 drive becomes "Write Protected" or shows "No Media," it often indicates a firmware glitch. The industry-standard tool for reviving these FirstChip-based drives is the FirstChip MpTools . Download the version compatible with or FC1179 . vid+346d+pid+5678+best

Most commonly uses the FirstChip FC1178/FC1179 series. Note that this will erase all data, but

If the drive isn't recognized, you can manually update it via Device Manager by selecting "USB Mass Storage Device" and using the "Update Driver" function. Download the version compatible with or FC1179

The "best" way to manage this device is to know exactly what is under the hood. Since VID 346D/PID 5678 is a generic identifier, manufacturers often use it for various memory chips.