For WiFi, I remember I found the firmware from someplace, then the WiFi worked.
ubuntu@ubuntu:~$ ls /lib/firmware/brcm/brcmfmac43455-sdio.* -la -rw-r--r-- 1 root root 600487 Sep 1 05:45 /lib/firmware/brcm/brcmfmac43455-sdio.bin -rw-r--r-- 1 root root 14036 Sep 1 05:45 /lib/firmware/brcm/brcmfmac43455-sdio.clm_blob -rw-r--r-- 1 root root 2054 Sep 1 05:45 /lib/firmware/brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt -rw-r--r-- 1 root root 2054 Sep 1 05:45 /lib/firmware/brcm/brcmfmac43455-sdio.txt ubuntu@ubuntu:~$ ls /lib/firmware/brcm/brcmfmac43455-sdio.* | xargs md5sum 963eb0d4903040974ee88b4f85cb1f4f /lib/firmware/brcm/brcmfmac43455-sdio.bin c5aeca0e33de4ae870986c517963fef7 /lib/firmware/brcm/brcmfmac43455-sdio.clm_blob 7b983812a8aee7bf701460436c686226 /lib/firmware/brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt 7b983812a8aee7bf701460436c686226 /lib/firmware/brcm/brcmfmac43455-sdio.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847500 Title: Full RAM on Pi4 isn't accessible when using u-boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/u-boot/+bug/1847500/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
