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Technical support answered to me, the same solution as in https://askubuntu.com/questions/ ... ter-not-recognised:
The issue is that it cannot find your brcm/brcmfmac43455-sdio.txt file. For me, this issue happened on the CSL Narrow Box 4k. I've experimented a lot with many solutions found on the web, but the following finally did the trick:
Download the text file https://github.com/RPi-Distro/fi ... mfmac43455-sdio.txt.
Copy it into your device's /lib/firmware/brcm/ folder.
Reboot.
Now the system should be able to find the missing file and WiFi should work as expected. |
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