Got my mavic yesterday, spent like 3 hours trying to get through the Registration/Setupwizard on the GO 4 App.
I tried this on Samsung S7, Galaxy Alpha, and a Vizio tablet. Bug occurs in all 3. on diffrent versions of android. ( 5, 6, 7 all failed )
The bug is it connects to the quad, then the registration wizard pops up. I name the quad, select Mode 2.. The next screen that shows what all the buttons are for, you cannot click on Next, cannot click on back.
I finally got it to work by plugging my phone in via the bottom USB port on the controller and held my phone vertical in portrait mode...then the wizard let me click next on that screen and I was able to finish the wizard.