I just installed the latest Manjaro (kernel 6.12) on my laptop (Acer 4755 BCM43227). No Wi-Fi is detected (disconnected / there is no networks available). I’ve updated the system and installed the Broadcom STA driver, but there’s no progress. What should I do next?
Moderator edit: removed gratuitous screenshots
Welcome to the forum! 
Without proper information regarding your system, we cannot help you. Please see the links below. 
Tips and Tricks
How to Request Support
ttyResources
As a new member, you may want to subscribe to notifications for the Announcements > Stable Updates category. Every bundled update, whether it’s for Manjaro Testing or Manjaro Stable, always comes accompanied by a dedicated announcement thread.
The first post of the thread contains the changes with regard to the previous bundled update.
The second post of the thread details the potential problems, and how to deal with them.
The announcement thread also always contains a poll (in the first post), and a summary of past issues (in the second post), for those who’ve skipped an update — which is not advised with a rolling-release distribution, but it does happen. 
Please see → Broadcom wireless - ArchWiki
Abandoned.