I've already rooted my phone, I already have superuser and avast have root permission...
how I explained in my first post, when i go to active on firewall, avast take the root permission but tells me that my kernel isn't compatible with netfilter
I think the kernel needs to be compiled with the netfilter support, it's not just about adding a file here or there.
Filip
thank you filip, so i'm hopeless, I don't have any way to solve it....it's a pity