Minis Forum z83-f WiFi Not working under Libreelec 10

Previously I was running LibreElec 9 on a couple of mini pc and the WiFi worked fine. I upgraded to LibreElec 10 and now the WiFi won't work at all.

Here is the output from dmesg in regard to the brcm chip:

[ 6.899032] Bluetooth: hci1: BCM: 'brcm/BCM4345C0.hcd'

[ 6.899034] Bluetooth: hci1: BCM: 'brcm/BCM.hcd'

[ 8.738428] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6

[ 8.739558] usbcore: registered new interface driver brcmfmac

[ 8.762547] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.Default string-Default string.txt failed with error -2

[ 9.793364] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50

[ 10.799169] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50

I have copied the firmware files to /storage/.config/firmware/brcm and they are:

brcmfmac43455-sdio.bin

brcmfmac43455-sdio.txt

brcmfmac43455-sdio.clm_blob

Originally there was a complaint about brcmfmac4355-sdio.txt missing. After putting that file in place I'm still getting the errors listed above. Am I doing something wrong or is this WiFi just not going to work in this kernel for some reason?

I just installed LibreELEC 9.2 on this device and the WiFi is working without adding any firmware files at all. Is there something extra that needs to be done just to get WiFi working in the latest LibreELEC? Did this chipset lose support with later kernels?