1-Open the front of your Brother scan and cut machine. Lift the tab at the front of the blade holder.
2- Carefully remove the blade and casing.
3- Screw on the B adapter to the foil quill. Plug into a USB power bank. The light should come on if power is getting through to the quill.
4- Carefully place the adapter with the foil quill into the blade holder. Clip the tab down to lock in place. The quill is now ready to use after it has 5 min to heat up.