https://market.android.com/details?id=net.szym.barnacle This is common knowledge for some veterans here already. Barnacle wifi tether creates a working adhoc wifi hotspot in your S7 that allows the Edge or 3G data connection within your S7 to be used by external devices that support adhoc connectivity, such as your laptop. Wifi tether was tested not to work. To use this, you need to be rooted. You will also need to go into settings and disable wpa_supplicant.