: For a thorough repair, select Clear or Scan Level 2/Low-level Format . This will identify bad sectors and determine the actual storage capacity.
：32GB U盘量产后只显示8GB或16GB。
Watch the progress bar.
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如果U盘插入电脑后完全没有反应（无盘符、设备管理器也无显示），量产工具也无法识别： firstchip fc1178bc mptools 2022
Download the verified archive package.
| Error Code | Meaning in FC1178BC Context | 2022 Fix | | :--- | :--- | :--- | | | Flash ID mismatch / Broken pin | Reseat the drive. Check USB 3.0 port. Use USB 2.0 port instead. | | 0x120 | Bad block overflow (too many dead cells) | In Settings, reduce capacity by 50% (e.g., 16GB to 8GB) and re-run. | | 0x203 | Write/Verify failure | The NAND is physically dead. Replace the drive. | | Timeout Error | Communication dropped | Disable Windows Power Saving for USB Root Hubs in Device Manager. | : For a thorough repair, select Clear or
Do not unplug the drive or turn off your computer during this process.
If a 64GB drive turns into an 8GB drive after flashing, do not panic. This indicates that the original drive was a counterfeit "fake capacity" USB stick, or that massive sections of the NAND flash memory had degraded. The tool saved the remaining functional sectors, leaving you with a smaller but entirely stable, real drive. Use USB 2
Select if the drive just has a minor file system glitch.