How can I block all incoming connections to my phone? Ok, so maybe I'm just a lil paranoid lately, but I'm trying to block any - and ALL - connections to my phone. PERIOD. I have the paid version of Android Firewall.

If I select Black list from the drop down box and check WiFi, Data, Roam, VPN, LAN, &amp; Input Chain for (Any Application) will that accomplish the goal I'm getting at?
I don't know how Android Firewall app worked, but it's simple to achieve with iptables; thanks to Linux kernel. Since Android uses default policy ACCEPT, drop any unwanted packets:

~# iptables -I INPUT ! -i lo -m conntrack ! --ctstate ESTABLISHED,RELATED -j DROP
~# iptables -I FORWARD -j DROP


This will also block incoming connections from tethered devices on hotspot network. You can exclude those, see this: Is There A Mobile Hotspot App With A Firewall to Block Incoming Connections?