Hi, I installed Kali 2020.1a on my laptop, and I can't set up my ALFA wireless usb adapter.

I tried installing firmware with:

$sudo apt-get install firmware-ralink

Here is my lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0cf3:e500 Qualcomm Atheros Communications
Bus 001 Device 003: ID 5986:210e Acer, Inc EasyCamera
Bus 001 Device 005: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

The led on the ALFA blinks, but I can't see any SSIDs.

I tried this:

$ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000
link/ether aa:aa:aa:aa:aa:aa brd ff:ff:ff:ff:ff:ff
5: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether bb:bb:bb:bb:bb:bb brd ff:ff:ff:ff:ff:ff

Try to drop qualcomm notebook wifi adapter:

$sudo ip link set dev wlan0 down
$ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DORMANT group default qlen 1000
link/ether aa:aa:aa:aa:aa:aa brd ff:ff:ff:ff:ff:ff
5: wlan1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether bb:bb:bb:bb:bb:bb brd ff:ff:ff:ff:ff:ff

Try to enable the Alfa usb wifi adapter:

$sudo ip link set dev wlan1 up
RTNETLINK answers: No such device

Ifconfig don't show me the wlan1 adapter.

$ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 18 bytes 1192 (1.1 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 18 bytes 1192 (1.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.66 netmask 255.255.255.0 broadcast 192.168.100.255
inet6 aaaa::aaaa:ffff:fed9:243b prefixlen 64 scopeid 0x20<link>
ether bb:bb:bb:bb:bb:bb txqueuelen 1000 (Ethernet)
RX packets 14343 bytes 9914455 (9.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6662 bytes 1077068 (1.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

I'm guessing there is something wrong with the drivers (rebooted many times) but the usb
adapter seems to work, the "state DOWN mode DEFAULT" on ip link makes me
think there it's a switch I'm not seeing to enable the adapter.

Any clues?

Thanks!