Android Question b4a app installation problem


New Member
I have installed B4A version 11.20 on windows 10 and have two main problem with this program as below

1- USB debugging mode can not install the app to any mobile .
2-B4A bridge can install app to mobile by WIFI but the app name in the mobile is always B4A designer and blank screen .
many years ago I worked with old version on window 7 and it works now also but any program even the simple program to show a button will not work in new version on win 10 and always screen is blank . I create the layout and call it by Activity.LoadLayout("layout") but as I said screen is always blank .
Does anybody can help to solve these problems?