Rasbperry Pi 3 - how disable Wifi?

Hello ,

i just got a fancy new Raspberry Pi 3 Model B+,

and trying to figure out how to disable WiFi with Libreelec installed?

Please let me know how to do it.

this post here seem suggest to go to /boot/config.txt but it does not seem present in libreelec.

/boot/config.txt

How do I turn off wifi? - Raspberry Pi Forums

thank you

it says

 rfkill list
0: hci0: bluetooth
	Soft blocked: no
	Hard blocked: no
1: phy0: wlan
	Soft blocked: yes
	Hard blocked: no

however, i would like both Bluetooth + Wiùfi "HardBlocked" as best as possible, thanks.

thank you,

that was helpful, now it reads

after

# Disable Wifi
dtoverlay=disable-wifi

rfkill list
0: hci0: bluetooth
	Soft blocked: no
	Hard blocked: no

and aftwer adding the line for bluetooth

dtoverlay=pi3-disable-bt

the reading says

 rfkill list
LibreELEC:~ # 

however, when compared to Raspberry Pi1 , the RF reader gives still rather high reading, even with WiFi and Bluetooth OFF, so i would say mission only partly accomplished.

Is there not a BIOS switch to disable more properly the WiFi+Bluetooth?

EDIT> it seems the reading is comparable to the Raspberry Pi1 after the switchOFF of WiFi+Bluetooth, so would like to retract the prior statement of higher readings<

but still , it is nowhere an ideal solution.