Bug#985632: firmware-brcm80211: [REGRESSION] RPi4B 5GHz WiFi stopped working with 20210208-4, 20201218-3 was fine

[Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>]

Package: firmware-brcm80211
Version: 20210315-1~exp1
Followup-For: Bug #985632

Dear Maintainer,

This reported symptom also exists in
20210315-1~exp1.

Best regards, Ryutaroh

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: arm64 (aarch64)

Kernel: Linux 5.10.0-4-rt-arm64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CRAP
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

firmware-brcm80211 depends on no packages.

firmware-brcm80211 recommends no packages.

Versions of packages firmware-brcm80211 suggests:
ii  initramfs-tools  0.140

-- no debconf information