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I have a Haier HV102H laptop-transformer with Windows 10 and Ubuntu 16.04 on board, but there is a problem with the WiFi adapter (Broadcom 802.11n Wireless SDIO Adapter). There is no device visible in the output of lspci or lsusb and no network interface visible in the output of ifconfig. WiFi isn’t working. Windows driver installation (by NdisWrapper) and kernel upgrading (up to 4.12) did not help.

It's not a hardware problem: on Windows everything works sucessfully. What can I do to connect Ubuntu to WiFi?

sudo lshw -c network outputs nothing.

After putting new file to /lib/firmware/brcm:

$ dmesg | grep -e sdio
    [    2.746646] mmc1: new high speed SDIO card at address 0001
    [    7.894985] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
    [    8.918931] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
    [    9.927194] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
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  • brcm/brcmfmac43430-sdio.txt ???? not brcmfmac4330-sdio.bin?
    – ubfan1
    Oct 16, 2017 at 19:19
  • Do you have internet access by ethernet, tethered or other means on the Haier? My answer will depend on it.
    – chili555
    Oct 16, 2017 at 20:20
  • @chili555, yes, I can connect Haier to the internet, using USB wire connection. Oct 17, 2017 at 19:40
  • See bugs 1691729 and 1578745.
    – ubfan1
    Oct 17, 2017 at 21:40

2 Answers 2

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First, I suggest that you remove ndiswrapper. From the terminal:

sudo apt-get purge ndiswrapper*

Next, let's try to install the missing firmware file.

cd /lib/firmware/brcm
sudo wget https://github.com/RPi-Distro/firmware-nonfree/blob/master/brcm80211/brcm/brcmfmac43430-sdio.txt

Reboot and tell us if there is any improvement. Post a new message log reading:

dmesg | grep -i sdio
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  • no, there is no improvements. Oct 18, 2017 at 9:37
  • Any new clues in dmesg | grep -i sdio?
    – chili555
    Oct 18, 2017 at 12:48
  • no, only disappeared this line: [ 6.847976] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.txt failed with error -2 Oct 18, 2017 at 13:10
  • May we also see: rfkill list all and also: dmesg | grep brcm As the output may be lengthy, paste the result here and give us the link: paste.ubuntu.com
    – chili555
    Oct 18, 2017 at 13:30
  • paste.ubuntu.com/25767438/ Oct 18, 2017 at 18:36
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One of the ways to make wlan0 working is to upgrade Ubuntu to 17.10, download one of binary firmware files from jwrdegoede.danny.cz/brcm-firmware, rename it to brcmfmac43430a0-sdio.bin and paste it to /lib/firmware/brcm.

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