If you just install a firewall app using its defaults and don't bother to go through the app's settings it's not going to be very effective. I am also trying to learn how to use ADB commands to give apps permissions without rooting for different reasons.Ĭlick to expand.Yes, been using a firewall app since 2012 and still use a semi-retired phone at home running KitKat that's used just as a WiFi-only media player. So I am back to trying to get the firewall app to work on this version. The phone is Huawei-Y5 and I tried several times to upgrade the ROM to anything newer but I did not know that phones are locked and different attempts ruined the recovery mode because I did not realize that phones are locked and that I needed to request for a password from the company to unlock it. I used to be Microsoft service person and now I am learning about supporting Android for personal interest. The reason that I am trying to get it to work is just part of my technical development skills. I bought this device as an extra device to use it when I travel since it is cheap at 95% at that time and won't worry much about it if it got lost. Some of the firewall apps that I tested came out in 2014 and did not get updated because they did not need to be updated since they work well., and that was 1 year before I bought this phone and yet they did not work either.

King root apk 4.4.2