How to Fix Nintendo 3DS Error Code 0xd900458b (ErrDisp – kujira-2 Crash Guide)

If you’re seeing an error screen on your Nintendo 3DS that reads something like:

An error occurred (ErrDisp)
Error type: generic
Process name: kujira-2
Error code: 0xd900458b

This is a common error tied to the Nintendo eShop (kujira-2 is the internal name for it), and it’s usually fixable.

What Does This Error Mean?

The error code 0xd900458b typically shows up due to:

• Corrupted save data or update files
• A failing SD card
• Misconfigured or outdated eShop data
• Issues with network connectivity
• Use of mods, cheats, or custom firmware conflicts

Step-by-Step Fix Guide

1. Reboot and Retry

• Simply press any button on the error screen to reboot.
• Try launching the eShop or app again.

2. Turn Off Wi-Fi

Sometimes network issues trigger the crash. Do this:

• Go to System Settings > Wireless Communications
• Turn Wi-Fi OFF
• Try launching the eShop again

3. Check and Repair SD Card

Corrupt SD cards are a major culprit.

On PC:

1. Insert the SD card into your computer
2. Backup all files
3. Right-click the SD > Properties > Tools > Check for errors
4. Alternatively, use tools like h2testw or F3X to check for bad sectors
5. Reformat the SD card to FAT32
6. Restore your backup files

Note: If the issue started after transferring files to the SD card, something might’ve been corrupted during the transfer.

4. Reinstall or Repair the eShop App

If you’re using custom firmware:

• Launch FBI
• Go to Titles and search for kujira-2
• Delete and reinstall it using a clean CIA file
• Or go to the eShop and choose the “Repair Software” option (if available)

5. Disable Cheats or Plugins

If you’re running Luma3DS:

• Hold SELECT while booting to enter Luma Configuration
• Turn off “Enable game patching”
• Make sure no cheats or plugins are active

6. Try Another SD Card (Optional)

If you suspect hardware issues, test with a different SD card:

• Use a spare card with a clean install
• Boot and check if the error still occurs

Advanced Fix (Optional)

In rare cases, physical hardware issues (like a loose SD slot or internal connection) may trigger this. A few users resolved it by:

• Cleaning the SD slot with isopropyl alcohol
• Reseating internal components (only for experienced users)

Summary of Fixes

Final Thoughts

Error 0xd900458b might look serious, but it’s usually software or SD-card-related, not permanent hardware damage. By following the above steps, most users have successfully resolved this issue without sending their 3DS for repair.

Have you fixed this error another way? Share your fix to help others.