Thanks, it worked!
This is what I did in my Android phone, since these updates was needed in order to get contact with the BT module.
(allowing the app to use storage)
Settings/apps/(locate the MPX Launcher)/acess ability/storage Yes
You should update the Appstore it only have 1.0.41 from 2014!! To avoid time consuming problems.
the phone had to load 8 updates!
By the way, There is a wrong document linked at your BT module sale page
(I had to spend long time to find the manual)