FAQ
Frequently asked questions and solutions for IODD devices.
🔐 Password & Security
I entered the correct password, but it says "Incorrect."
You must enter the user identification prefix before your password.
Admin: Enter 0 + [Your Password]. (e.g., if your password is '1234', enter '01234')
Users: Enter 1~4 + [Your Password]. Refer to: Encryption Guide
I forgot my password. Can I recover my data?
No. It is absolutely impossible for anyone, including the manufacturer, to recover or find a forgotten password. The data is hardware-encrypted.
I forgot my password. How can I reuse the IODD?
The only way to reuse the device is to Reset Password. All existing data will be permanently lost during this process.
2541 : 2541 Reset Password
MINI : MINI Reset Password
ST400, LK100 : ST400 Reset Password
💻 Booting & Virtual Drive
The IODD will not boot from the PC.
Please refer to the Booting Error Guide for detailed troubleshooting steps.
When I mount a VHD, the mode changes to CD-MODE automatically.
This is often caused by the filename or default settings. Legacy models (2531/2541) use filename extensions like .VHD (Fixed) and .RMD (Removable) to control mode behavior. Refer to the VHD Advanced Naming Guide.
How can I unmount virtual drives?
ST/MINI PRO: Navigate to the file and press the select key, or use the [7] eject hotkey.
Legacy: Press and hold [7] for 3 seconds, or use the Menu -> Advanced -> Umount VHDD option.
🛠️ Hardware & Maintenance
My SSD write speed has become noticeably slow.
If your SSD's write speed has degraded, performing a TRIM operation will greatly improve performance.
Why TRIM?: USB-connected external SSDs typically do not receive automatic TRIM commands from Windows. Running TRIM manually clears unused data blocks, preventing speed degradation and extending the SSD's lifespan.
How to fix: Use the IODD TRIM Tool to perform a "Free Space TRIM" (safely optimizes without losing data) or a "Full TRIM".
SLC Cache Tip: Most modern SSDs use an "SLC Cache" for fast initial writes. Once the cache is full, speeds drop significantly. After a large file transfer, leave the IODD connected to USB power for about 10 minutes before unplugging. This gives the SSD controller enough idle time to flush the cache and reorganize data, ensuring fast speeds for your next use.
The LCD only displays "IODD [Model Name]" and does not progress.
This indicates a system hang or corrupted firmware. Please perform a Firmware Update or use the Emergency Recovery Procedure (Section 15.2 in the Appendix).
The touch sensitivity of the buttons is poor (2541).
For older units, placing a thin piece of paper or plastic film between the internal drive and the front body (not the cover) can improve responsiveness.
The firmware update fails repeatedly.
Ensure you are using a stable USB port (rear of the PC) and have only one IODD connected. Refer to the Firmware Update Guide.
Last updated