Running a QtQuick application, which works nicely on Qt 5.4.0, fails on Qt 5.4.2 with "OpenGL ES 3.0 entry points not found" error on some Android devices. It might be a plain coincidence, but: the failing devices have Android version 4.2.2 while succeeding ones have both older (e.g. 4.0.4) or newer (e.g. 4.3 or 5.0) versions.

I guess the error message is printed when the system reports a OpenGL ES 3.0 context while its OpenGL library doesn't have 3.0 functions. Support for OpenGL ES 3.0 was introduced in Android 4.3, which explains why newer versions are working correctly.