Block 2/3DS Firmware Updates

This is about how to prevent your 2/3DS from incidentally firmware updating.

Here is a easy way.

  1. Download the PokGear App.
  2. Open the app and go to the menu screen, switch the 'Enable QR Section'.
  3. Set the ip as your 2/3DS' DNS. That's it!

Here is a tutorial video of how to set DNS on 2/3DS.