Here are the standard settings to have in the SL2 camera for the Exposio App. 

Always put the camera in manual mode and the lens in AF.

In the first menu (in red): 

Image quality at S1: In the first tab select Image quality at S1 with the quarter circle and press set

Image Review: In the first window select Image Review then set to OFF and press set

In the yellow menu: 

Auto power off: In the wrench tab (2nd window), select Auto power off and set 15 minutes then press set

Beep: In the wrench tab, (3rd window) select DISABLE and press set

WiFi Menu

1) In the first wrench tab menu (yellow), go to Wireless communication settings. 

2) Select Wifi Settings.

3) Enable the Wi-FI. 

4) In password, select None.