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With a bit of luck, installing this firmware package and rebooting might be enough to get your Wi-Fi functional if the necessary driver is already in kernel. If Ubuntu uses the same naming scheme as Debian, the firmware package name should be firmware-brcm80211. Note that the supported Broadcom chips will need firmware: it is probably available pre-packaged in Ubuntu. You can check here for the Linux support status of various Broadcom chip models: The lsusb listing is a bit different, but the Device ID number is similar: 4 hexadecimal digits for the vendor id, a colon, and then 4 hexadecimal digits for the product ID. The first part specifies the vendor (Broadcom = 14e4) and the second part identifies the device model.
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The lspci -nn listing line might look something like this: 12:00.0 Network controller : Broadcom Limited BCM43228 802.11a/b/g/n Lspci -nn would be a good command to list all PCI(e) devices on your laptop and their PCI ID numbers: those numbers would allow a more accurate identification. "802.11n" is just the name of the Wi-Fi standard it supports: Broadcom has several wireless chips supporting that standard. Hard blocked: no Settings > Wifi > move to On > select your Wiki connection to enter credentialsįirst, you'll need to find the exact model of the Broadcom network adapter chip your notebook has. Running below command in Terminal, you can see the issue: But I mistakenly pressedįn + F12 which was Wifi button with 'Radio' symbol on it, which disabled my wifi connection. I tried to increase volume with:įn + F10 key combination.