Hey there I Work on bb 2.3.8, Android studio 3.5 Jdk 1.8, and my phone is android 6. After building apk, and try to install it on my phone i didn't work even i have install sdk for Android 6 , but the apk work on higher android version I think I have missed some things or some sdk that prevent apk to install on lower android version. Can you help me
Did you make sure unknown sources is turned on in phone settings? Settings, Security, Unknown Sources to ON.