BSD33 10A Plug

Hi @kueblc

I had already flashed other devices with tuya-convert 2 years ago, but now.... no way.
I've tried with a simple smart plug BSD33 (originial firmware 1.4 MCU).
Everything is ok except that the device is not flashed. It stucks at smart config

**MQTT:**
1605026323: mosquitto version 1.4.15 (build date Tue, 18 Jun 2019 11:42:22 -0300) starting
1605026323: Using default config.
1605026323: Opening ipv4 listen socket on port 1883.
1605026323: Opening ipv6 listen socket on port 1883.

**WiFi: (I have masked the MAC on this topic)**
Using interface wlx0013f7aa089f with hwaddr XX:XX:XX:XX:XX:XX and ssid "vtrust-flash"
wlx0013f7aa089f: interface state COUNTRY_UPDATE->ENABLED
wlx0013f7aa089f: AP-ENABLED
wlx0013f7aa089f: AP-STA-CONNECTED XX:XX:XX:XX:XX:XX

**PSK:**
new client on port 443 from 10.42.42.13:54620
new client on port 443 from 10.42.42.13:54784

**UDP:**
Listening for encrypted Tuya broadcast on UDP 6667
10.42.42.15 {'ip': '10.42.42.15', 'gwId': 'bfe5dcad0be57ad07aiphr', 'active': 0, 'ablilty': 0, 'encrypt': True, 'productKey': 'zmuquaytzuth4gkp', 'version': '3.3'}

**Web:**
Listening on 10.42.42.1:80
[I 201110 17:38:45 web:2243] 302 GET /generate_204 (10.42.42.13) 0.75ms
[I 201110 17:38:55 web:2243] 302 GET /generate_204 (10.42.42.13) 0.58ms
[I 201110 17:38:57 web:2243] 302 GET /generate_204 (10.42.42.13) 0.56ms

And here... it hangs !
Is this still blocking because the certificate validation? has anyone succeeded with a recent firmware?
I have no modified the orignal productKey. Should I?

Thank you