The following exploits make use of one of two DS-mode applications built into the 3DS: DS Internet Settings and DS Download Play.
If both DS Internet Settings and DS Download Play fail to work, you will have to repair them with [TWLFix-3DS](https://github.com/MechanicalDragon0687/TWLFix-3DS/releases/) using a homebrew entrypoint, such as Pichaxx.
#### DS Internet Settings Test (used for Fredtool)
1. Go to System Settings, then "Internet Settings", then "Nintendo DS Connections"
1. Press "OK"
1. If your device loads into a "Nintendo Wi-Fi Connection Setup" menu, the test was successful
+ If the screen stays black or appears to freeze, the test has failed
1. Exit this menu
#### DS Download Play Test (used for Frogtool)
1. Launch the Download Play application (![]({{ "/images/download-play-icon.png" | absolute_url }}){: height="24px" width="24px"})
1. Select "Nintendo DS"
1. If your device loads into a “Download software via DS Download Play” menu, the test was successful
+ If the screen stays black or appears to freeze, the test has failed