Linux Mint 21 - Broadcom 43142 - wifi stopped working

I'm using Mint 21 on an HP 17-y002na laptop. It's been connected via ethernet cable for much of the time since I updated to 21, but has had wifi capability at times. Last week I noticed that the symbol showing ethernet connection was absent from my panel, but wired connection still works. Unplugged, I get no wifi options or connection Since then I have tried to sort it to no avail, and I think I may be doing more harm than good, so I'm asking for help. Current situation is: iwconfig returns lo no wireless extensions. eno1 no wireless extensions. wlo1 IEEE 802.11 ESSID:off/any Mode:Managed Access Point: Not-Associated Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off lspci -nnk | grep 0280 -A4 returns 03:00.0 Network controller : Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01) DeviceName: WLAN Broadcom 43142 bgn 1x1 Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a] Kernel driver in use: wl Kernel modules: bcma, wl 'rfkill list all' returns 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no The bluetooth unblocks when I select 'Turn Bluetooth On' in the panel, and the above command does then show 'Soft blocked: no' 'dmesg | grep wl' gives me [ 13.649275] wl: loading out-of-tree module taints kernel. [ 13.649291] wl: module license 'MIXED/Proprietary' taints kernel. [ 13.660611] wl: module verification failed: signature and/or required key missing - tainting kernel [ 13.877253] wlan0: Broadcom BCM4365 802.11 Hybrid Wireless Controller 6.30.223.271 (r587334) [ 14.674777] wl 0000:03:00.0 wlo1: renamed from wlan0 Wifi is (still) enabled in my BIOS/UEFI set up. Safe boot is disabled Driver Manager shows I am using bcmwl-kernel-source version 6.30.223.271+bdcom-0ubuntu10~22.04.1 I do want to be able to use the laptop without having to be ethernet connected Any information, advice or guidance appreciated. Thank you in advance, Phil Edit 1 - replaced output of all commands with current output Edit 2 - I neglected to include all of the linux-header* i had showing as installed. These were: linux-headers-5.15.0-79 linux-headers-5.15.0-79-generic linux-headers-5.15.0-82 linux-headers-5.15.0-82-generic linux-headers-6.2.0-31-generic linux-headers-generic linux-headers-generic-hwe-20.04 linux-headers-generic-hwe-20.04-edge linux-headers-generic-hwe-22.04 linux-headers-generic-hwe-22.04-edge I have now uninstalled each of the 5.15.0-79* and 5.15.0-82* headers, as well as the linux-headers-generic-hwe-20.04* headers, and rebooted. Software manager informed me I needed to install 5.15.0-82* again, so I did, and uninstalled linux-headers-6.2.0-31-generic, which automatically removed the linux-headers-generic-hwe-22.04*. Rebooted again, and this time Software Manager didn't flag anything up. Still no wifi, but possibly getting closer to a solution?