Cannot unblock soft-blocked bluetooth

I have a problem with my bluetooth adapter. Can’t turn it on, and i followed some tutorials to fix that, but with no luck. It seems to be soft blocked, I run the command to soft unblock, the icon in taskbar goes white for a 0.5 second and then is switched back. how can i unblock this? here is the output of console when I run rfkill list all :

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hp-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: hp-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no

I used sudo rfkill unblock bluetooth to unblock bluetooth.

SOLUTION

If the unblock command doesn’t work, try another two commands (which will ask for password):

rfkill unblock bluetooth
systemctl enable bluetooth.service
systemctl start bluetooth.service