If you have a fairly new model of the QX7 then the S.Port on the bottom may very well be working now! If this is the case please use that to connect to your receiver instead of the rear module pins!
This is nothing new, but im surprised how many people still don't know this can be done. The MOST important part is to make sure you have the correct wiring at either end. Pay very careful attention to where positive, ground and S.Port signals go on both the receiver and the taranis external module pins!
Extra content, monthly live chats, exclusive discounts, giveaways and more over on my Patreon! Thanks for your support you wonderful people! :) http://patreon.com/njtech