Trying to import from Sony Alpha to Lighroom Mobile on Android

Hello, I am looking for some help regarding using the Lightroom mobile App on Andriod and a Sony Alpha Camera. 

I am following these instructions but I am getting stuck on step 2, I can't get my phone to prompt me to choose how to import the photos. I was just wondering if anyone has had success importing straight from a sony camera to Lightroom mobile in Android or if anyone can point me in the direction of where to find out how?