Can you change modes while charging? tecla support August 17, 2015 15:28 Updated Follow Yes, you can make full use of the Tecla Shield while it is plugged in. For more information on changing modes, see this video: https://youtu.be/cn41GhTDe4M?t=2m18s Related articles How do I use my wheelchair driving controls to control my phone or tablet? Can I use Tecla with Assistive Touch? Comments 0 comments Please sign in to leave a comment.