Error Messages
Troubleshooting common error messages and status codes displayed on the IODD screen.
💾 Partition & File System Errors
"1st Partition: XX"
For 2541 / 2531 Models: Check your firmware version (ending in N or F).
N version: Supports NTFS only.
F version: Supports exFAT / FAT32 only.
For ST400 / ST300 / MINI: Unified firmware supporting both MBR and GPT.
[!TIP] Multi-Partition Support ST/MINI models can mount ISOs from any primary partition. Hold the [4] key for 3 seconds to manually select a different partition.
"ASSERT Fails ArreyOffset"
Primary Cause: This error typically occurs when the IODD is unplugged without using "Safely Remove Hardware" (Safe Ejection). Failure to eject safely can lead to corrupted filesystem metadata or unwritten cached data.
First Action (Data Preservation): Connect the IODD to a PC and perform a Disk Check (chkdsk) to repair the metadata errors caused by improper disconnection.
Second Action: If the error persists, you must re-initialize the drive. Refer to Drive Initialization.
[!CAUTION] Importance of Safe Removal To prevent the "ASSERT" error, always use your operating system's Safely Remove Hardware or Eject function before physically disconnecting the USB cable. This is especially critical when using the NTFS file system.
🛡️ Security & Access Errors
"Not Match..."
The entered password does not match.
Solution: Ensure you are using the correct admin/user prefix.
Admin:
0+[Password](e.g.,01234)User:
1~4+[Password]
"No Extra Devices"
No virtual drives are active.
Solution: Use the Mode Configuration to enable VHD/ISO drives.
⚙️ Hardware & Performance Errors
"Check HDD" / "Drive Error"
Communication failure with the internal drive.
Causes: Physical disk error or Low Voltage (unstable power).
Solution: Try a different USB port or a Y-cable for stable power.
"DEFRAG"
The ISO/VHD file is too fragmented to load (Max 24 fragments for ISO; 0 for VHD).
Solution: Use defragmentation utilities like MyDefrag or Defraggler.
Terminal Diagnostics (Windows)
If you encounter the "ASSERT" error, run the following command in Command Prompt (Admin) to repair the filesystem:
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