I had wi-fi and Bluetooth, and passing to newer update: I don't.

[phrantzisk]

Ubuntu 16.0.... everything was working ok. But with newer Ubuntu 18-04-4... neither wi-fi detection nor bluetooth utility. Please respect and comprehension. It's very difficult to deal with system programming, and as a common user, that's hardworking.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: firmware-b43legacy-installer (not installed)
ProcVersionSignature: Ubuntu 4.15.0-88.88-generic 4.15.18
Uname: Linux 4.15.0-88-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.11
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 9 19:29:06 2020
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-stella-atami161222-xenial-amd64-20170321-0
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-09-25 (166 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20170321-07:27
SourcePackage: b43-fwcutter
UpgradeStatus: Upgraded to bionic on 2020-02-14 (24 days ago)