Remember, you need to be updated to the latest firmware to access the Nintendo 3DS eShop and other online features of certain games (some games like Pokemon require you to download their latest software patch from the eShop but you won't be able to access it in the first place if your firmware is outdated). This update applies to the Regular 3DS, 3DS XL, 2DS, New 3DS, and New 3DS XL systems.
For reference, the previous 11.3.0-36U firmware update caused multiple hacked units with custom firmware to experience the Black Screen of Death. This is possibly one of Nintendo's way of combating piracy on the 3DS.
Version 11.4.0-37U available via wireless Internet connection includes the following improvements:How to Perform a System Update
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience.
1. Turn on your system and access the System Settings by tapping the wrench icon.
2. Tap "Other Settings."
3. Tap the right arrow three times to reach page 4.
4. Tap "System Update."
5. Tap "OK."
6. Tap "I Accept."
7. Tap "OK" to begin the update.
Notes:
- Your system must be connected online in order to perform these steps.
- It may take several minutes for the System Update to download. If you feel the update has stopped downloading, you can safely turn off your system and repeat these steps to try again.
- For more information on recent system and feature updates, please click here.
Troubleshooting
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The following error message may pop-up while you are downloading the latest system update:
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An error has occurred.
Unable to update.
The system will now be restarted.
- Try and try until you d̶i̶e̶ succeed.
- Try updating at a later time.
- Use Google's DNS Settings in your system's Connection Settings (Primary DNS: 8.8.8.8 and Secondary DNS: 8.8.4.4)
- Use a different connection (eg: Globe mobile Hotspot).
- Put your 3DS on Sleep Mode and hope for the best.
- Pray.
