How to disable WiFi in Raspberry Pi4, possibly keeping the chip powered off.
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1Does one of the answers solve your question? It should. Please accept one to finish the question.– IngoOct 25, 2019 at 9:40
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3 Answers
Raspbian is managing hardware with overlays. In /boot/overlays/README you will find:
Name: pi3-disable-wifi
Info: Disable Pi3 onboard WiFi
Load: dtoverlay=pi3-disable-wifi
Params: <None>
I suggest you just add
dtoverlay=pi3-disable-wifi
to /boot/config.txt to disable wifi. I have tested it with a Raspberry Pi 4B. It is also valid for Pi4. When disabled you will not get a WiFi interface wlan0 as you can check with ip -br addr.
UPDATE:
@JeffAtwood noted in his comment
They renamed it to
disable-wifiso you can use that,pi3-disable-wifiwas kept as a synonym for compatibility. Same thing with disabling bluetooth.
2019-10-25: seems everything is documented now in /boot/overlays/README.
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Has anyone tested this? I don't really want to risk bricking my pi based on an assumption :)– WossnameJul 16, 2019 at 18:05
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4One small tweak, they renamed it to
disable-wifiso you can use that,pi3-disable-wifiwas kept as a synonym for compatibility. Same thing with disabling bluetooth. Jul 22, 2019 at 9:11 -
4@Ingo Looking in
/boot/overlays/READMEfrom the September release of Raspbian Buster I can now seedisable-btanddisable-wifidocumented. Oct 24, 2019 at 21:29
Use rfkill block wifi and reboot to disable and rfkill unblock wifi and reboot to enable it again.
answered Jul 30, 2019 at 11:24
Create /etc/modprobe.d/brcm-blacklist.conf with the following content:
blacklist brcmfmac
blacklist brcmutil
Reboot, and WiFi should be disabled. You may find errors in the system log depending on what method you are using to configure the network. You can choose to correct those, or not, of course.
