Keyboard computers (400, 500, 500+) • PI500+ Wifi and Bluetooth issues

Hi,
I'm struggling with the Wifi and BT module on the new PI500+. After a few minutes the wifi connection is broken and I need to reboot to get reconnected.

In the journal log I got these kind of error messages:
19 20:33:28 raspberrypi kernel: brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
dec 19 20:33:28 raspberrypi kernel: ieee80211 phy1: brcmf_run_escan: error (-110)
I have installed the latest software versions. I'm running Trixie.
This is the firmware version:
apt-cache policy firmware-brcm80211
firmware-brcm80211:
Geïnstalleerd: 1:20241210-1+rpt4
Kandidaat: 1:20241210-1+rpt4
Versietabel:
*** 1:20241210-1+rpt4 500
500 http://archive.raspberrypi.com/debian trixie/main arm64 Packages
500 http://archive.raspberrypi.com/debian trixie/main armhf Packages
100 /var/lib/dpkg/status
20250410-2 500
500 http://deb.debian.org/debian trixie/non-free-firmware arm64 Packages
500 http://deb.debian.org/debian trixie/non-free-firmware armhf Packages

some more errors form the journal log:
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_txfail: sdio error, abort command and terminate frame
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_dpc: sdio ctrlframe tx failed err=-110
dec 24 17:34:40 raspberrypi kernel: brcmfmac: brcmf_sdio_dpc: failed backplane access over SDIO, halting operation
dec 24 17:34:40 raspberrypi kernel: ieee80211 phy0: brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110
dec 24 17:34:40 raspberrypi kernel: ieee80211 phy0: brcmf_cfg80211_dump_station: BRCMF_C_GET_ASSOCLIST failed, err=-110

Statistics: Posted by Mr Axe — Wed Dec 24, 2025 4:37 pm

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