The post u linked to, is a separate V4A module. It's unofficial and will probs won't be updated. I recommend the module I suggested and it's not a tweaked version of V4A and is just a SElinux module that sets it to Enforcing(The module I posted) or permissiveI'll test ... this post also interested me, by the way, changing boot.img did not help, is the phone bootlop. This is what I experimented with.