We encountered an error while trying to save the changes. We've made a note of it, and we'll fix the problem as soon as possible.
Lift the bottom edge of the lower case off the rest of the 3DS.
There are still two ribbon cables connecting the mother board to the case, so be sure not to pull the lower case all the way off.
Use a plastic opening tool to pry the shoulder button ribbon cables off their sockets on the motherboard.
Remove the lower case from the device.
Your contributions are licensed under the open source Creative Commons license.