After replacing Windows 7 with Ubuntu 20.04 on my ASUS, I am unable to connect to Wi-Fi, since the settings page says "no Wi-Fi adapter found". I tried some things mentioned in similar threads, like reinstalling bcmwl-kernel-source (although I didn't really understand what I was doing - I am a complete beginner), but that didn't work.
I suppose the relevant lines from output for lshw -C network are:
*-network UNCLAIMED
description: Network controller
product: MT7630e 802.11bgn Wireless Network Adapter
vendor: MEDIATEK Corp.
physical id: 0
bus info: pci@0000:02:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: cap_list
configuration: latency=0
resources: memory:f7d00000-f7dfffff
Also, rfkill list all doesn't produce any output. Could someone help me to at least understand what the problem might be?