How to fix rfkill Issues

I recently tried making wireless work on a laptop, but I got problems with rfkill showing that it was hard blocked. In fact, the wireless switch was off, but when I set it on, it still showed that it was hard blocked.

Here is a solution that I found that works:

1. Make sure that your wireless switch is on
2. Type in a Terminal window:
   sudo rfkill unblock all
for x in `for i in \`lspci -nn | grep 02[80] | awk '{print $1}' | tr ' ' '\n'\`; do lspci -vvvs $i; done | grep "Kernel driver in use:" | awk '{print $NF}'`; do sudo rmmod $x; sudo modprobe $x; done
sudo sed -i 's:false:true:g' /var/lib/NetworkManager/NetworkManager.state
sudo rfkill unblock all
sudo rm /dev/rfkill

3. Reboot

If you still can’t connect after the reboot, type this into a Terminal window:
sudo rfkill unblock all
for x in `for i in \`lspci -nn | grep 02[80] | awk '{print $1}' | tr ' ' '\n'\`; do lspci -vvvs $i; done | grep "Kernel driver in use:" | awk '{print $NF}'`; do sudo rmmod $x; sudo modprobe $x; done
sudo rfkill unblock all


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