This message only appears for WiFi modules if unlaunch is NOT installed. If you have unlaunch, look at this alternative:

- Title overflows can also cause a similar looking error

Description

The DSi immediately boots to "an error has occurred."

This can happen if the installed WiFi module and firmware are incompatible.

Solution

If you have the DWM-W015 WiFi module, the error is caused by something else. The DWM-W015 version is compatible with all firmwares.

If you have the DWM-W024 or J27H020 WiFi modules, you will need to either replace them with a DWM-W015 or upgrade your firmware to v1.4 or higher. These boards are not compatible with anything prior to v1.4.

The WiFi module types are shown below. From top to bottom: DWM-W015, DWM-W024, J27H020