RFKill is a subsystem in the Linux kernel that provides an interface through which radio transmitters in a computer system can be queried, activated, and deactivated.

What is Dev Rfkill?

The recommended userspace interface to use is /dev/rfkill, which is a misc character device that allows userspace to obtain and set the state of rfkill devices and sets of devices. It also notifies userspace about device addition and removal.

How do I unblock Rfkill?

2 Answers

1. You can add the command rfkill unblock all using “System Settings > Startup Applications > Add”
2. Or add it to your /etc/rc.local file, before any return statement: rfkill unblock all.
3. Not sure of this one; you can create a script ( unblock.sh ) in /etc/init.d with the single line rfkill unblock all >&2 .