After unsuccessful system update and automatic repositiry rapair I've lost Wifi and Fn+ buttons support on my HP Elitebook 8470p (intel chipet) with Linux Ubuntu 16.
It's old system, however with EMS support. But old, so Google finds nothing interesting/relevant :(
Ok...

#less /var/log/apt/history.log

... 
Start-Date: 2022-07-13  10:41:15
Commandline: /usr/sbin/synaptic
Requested-By: alter (1000)
Remove: linux-image-generic-hwe-16.04:amd64 (4.15.0.189.176), linux-generic-hwe-16.04:amd64 (4.15.0.189.176)
End-Date: 2022-07-13  10:43:33
...

#apt install linux-image-generic-hwe-16.04:amd64
#apt install linux-generic-hwe-16.04:amd64

FB