I have tried all solutions found here or on ubuntuforums.com, but no luck whatsoever.
It all started very randomly: I had my mother's nokia lumia connect via usb to my lenovo x230t, I disconnected it (without safely removing it first - ouch) and, when I unplugged the cable, I got the network disconnection alert on the top right corner of the screen and the wifi got hardware blocked.
My rfkill list is
0: tpacpi_bluetooth_sw: Bluetooth Soft blocked: yes Hard blocked: yes 1: tpacpi_wwan_sw: Wireless WAN Soft blocked: no Hard blocked: yes 2: phy0: Wireless LAN Soft blocked: no Hard blocked: yes
After this moment it the "Enable wifi" option has always been greyed out. I've tried :
the FN+key button, but no message whatsoever (actually looks like that command is not recognised)
sudo rfkill unblock 1and
2, but no effect whatsoever
sudo rfkill unblock all, but nothing
blocking first, and this changes the
yes, but then redoing
sudo rfkill unblock 1changes only the
Soft blocked, leaving the
echo blacklist acer-wmi | sudo tee -a /etc/modprobe.d/blacklist-acer-wmi.confand nothing even here
tried in the BIOS, but in my version there's no "Wireless Radio LAN" option
Another piece of information: every time I open System settings -> Network, the Airplane mode is on This has never happened before, so the cause is surely linked to the unplugging the smartphone. Maybe it hit on a system bug. Now the question is: how do I fix it?
I beg some expert for help, as this is the laptop I use for work and not being able to connect wirelessly is creating quite some problems. Thank you