[Q] how to hack into a open wifi network which asks for login. topic

hey guys , In my college there is wifi connection and its a open connection and when connected my phone prompts to sign in but i want to hack it and use the internet without loging in . I saw many things like droidvpn and ssh tunneling but i dont now how to use them and i want to hack in very badly.
please help me finding a way to hack into it from my mobile.