The ST10+ can't see the camera; you will need a cellphone or tablet that is able to receive 5.8 GHz wifi. Not all brands are equipped with dual band receivers, so see the manuals.
You should also load the app CGO3 pro to the Phone or tablet, than switch to the right wifi chanel (called Yuneec +something), click on the app CGOpro, this will enable you to see pictures from your camera on the steady grip (but only when turned on both phone and steady grip).
For returning the camera to your Q and ST10+, you should go trough the complete binding proces again. There are a lot of movies about doing this on YouTube.