Step 8Grind the Case
iImage Information

The newly installed 8P8C port is larger than the original opening on the bottom piece of the Wiimote. In order to reassemble the Wiimote the opening must be made larger to accommodate the 8P8C port. Please wear safety glasses. Clamp the bottom piece of the case. Using the Dremel Rotary Tool slowly grind away the case's plastic until the circuit board lies completely flat against the case. Be sure not to grind the tab that holds the battery case in place. If you do grind the tab, simply superglue a thin piece of plastic in place of the tab. This should be sufficient to give the battery case something to grab onto.
Once the 8P8C fits in the Wiimote case where the circuit board is pushed in all the way, you will see that the battery case will not close. In order to fix this a small part of the 8P8C will have to be grinded with the Dremel Rotary Tool.