Rapsberry Pi4B - not working

So I had no luck with a pi2 and dlink wifi, ordered a Pi4 with wifi built in. No luck yet.

Installed all to the letter but getting an error:

```
kali@kali:~/tuya-convert$ sudo ./start_flash.sh
tuya-convert v2.4.4
Checking for network interface wlan0... Found.
Checking UDP port 53... Available.
Checking UDP port 67... Available.
Checking TCP port 80... Available.
Checking TCP port 443... Available.
Checking UDP port 6666... Available.
Checking UDP port 6667... Available.
Checking TCP port 1883... Available.
Checking TCP port 8886... Available.
======================================================
Starting AP in a screen....
Starting web server in a screen
Starting Mosquitto in a screen
Starting PSK frontend in a screen
Starting Tuya Discovery in a screen

======================================================

IMPORTANT
1. Connect any other device (a smartphone or something) to the WIFI vtrust-flash
This step is IMPORTANT otherwise the smartconfig may not work!
2. Put your IoT device in autoconfig/smartconfig/pairing mode (LED will blink fast). This is usually done by pressing and holding the primary button of the device
Make sure nothing else is plugged into your IoT device while attempting to flash.
3. Press ENTER to continue

======================================================
Starting smart config pairing procedure
Waiting for the device to install the intermediate firmware
Put device in EZ config mode (blinking fast)
Sending SSID vtrust-flash
Sending wifiPassword
Sending token 00000000
Sending secret 0101
Traceback (most recent call last):
File "./smartconfig/main.py", line 26, in
smartconfig( passwd, ssid, region, token, secret )
File "/home/kali/tuya-convert/scripts/smartconfig/smartconfig.py", line 46, in smartconfig
sock = SmartConfigSocket()
File "/home/kali/tuya-convert/scripts/smartconfig/smartconfig.py", line 29, in __init__
self._socket.bind((address, 0))
OSError: [Errno 99] Cannot assign requested address
........................................................................................................................
Device did not appear with the intermediate firmware
Check the *.log files in the scripts folder
Do you want to try flashing another device? [y/N]
```
Whats wrong?