I have signed my Android application by :
Right click on project -> Android Tools -> Export Signed Application package
And tried to install that apk file on my Blackberry 10.2.1 but getting "unable to install" error.
Also tried to export application normally by just right click and Export and directly exported the application with new KeyStore, but same result I got.
Can anyone suggest what wrong am I doing?
Normally this is due to issues in your android manifest! Are you trying to access features not supported by BB10?
Check (or post here) your manifest and try to install it on an Android device to eliminate any other issues.