I Reopen because Qt should fully support Android API 21.

I add a small project, In wich you find the KDAB libs

What I did is

1. Open Android Studio
2. Create AVD 1: Pixel 2 5.0, image x86 Lollipop, API 21, Android 5.0 (Google APIs)
3. Create AVD 2: Pixel 2 5.0, Recommended image x86 Q, API 29, Android 9.+ (Google Play)
4. With Qt Creator, compile and run the annexed project with Qt 5.12.4 Android x86
5. Click on the button "Download https google" to start the test

application.zip

^{And this is the result I get}

^{The same error happens also on ARM using a Samsung Galaxy S8 (working) and a Samsung J3 2016 (not working)}