Miga Connex Connect CC-P2000 10A Inteligentny przełącznik WiFi z WB2S: podróż uż

Backup name is set to connex_cc_p2000.
Starting read!
Now is: Monday, 14 August 2023 16:31:52.
Flasher mode: BK7231T
Going to open port: COM7.
Serial port open exception: System.IO.IOException: A device which does not exist was specified.

   at System.IO.Ports.InternalResources.WinIOError(Int32 errorCode, String str)
   at System.IO.Ports.SerialStream..ctor(String portName, Int32 baudRate, Parity parity, Int32 dataBits, StopBits stopBits, Int32 readTimeout, Int32 writeTimeout, Handshake handshake, Boolean dtrEnable, Boolean rtsEnable, Boolean discardNull, Byte parityReplace)
   at System.IO.Ports.SerialPort.Open()
   at BK7231Flasher.BK7231Flasher.openPort() in W:\GIT\BK7231GUIFlashTool\BK7231Flasher\BK7231Flasher.cs:line 95
Failed to open serial port!
There was no result to save.

Device configuration, as extracted from Tuya: 
- Button (channel 1) on P8
- LED (channel 1) on P6
- WiFi LED on P26
- Relay (channel 1) on P7
Device seems to be using WB2S module, which is using BK7231T.
And the Tuya section starts, as usual, at 2023424

{
	"rl1_lv":"1",
	"netled_lv":"0",
	"bt_type":"0",
	"bt1_pin":"8",
	"mxcl_led_m":"0",
	"onoff_rst_m":"1",
	"led1_pin":"6",
	"rand_dpid":"43",
	"net_trig":"0",
	"led_dp":"40",
	"onoff_n":"3",
	"jv":"1)9Bgw_wsm{fsw_cnt_key",
	"passwd":"null",
	"md":"0",
	"random":"0",
	"wfb64":"1",
	"stat":"0",
	"token":"null",
	"region":"null",
	"reg_key":"null",
	"dns_prio":"00$Bis_stridenull",
	"psk_key":"u9yrej9Khjw4kTvkkedPmuTELOExWlFUxdHSR",
	"auth_key":"7jY3AD084jnaU6DLbNTWoksnNeMTyZbu",
	"ap_ssid":"SmartLife",
	"ap_passwd":"null",
	"country_code":"CN",
	"bt_mac":"null",
	"bt_hid":"null",
	"prod_test":"false }.0.0",
	"lock_dp":"41",
	"nety_led":"0",
	"netled_pin":"26",
	"total_stat":"2",
	"bt1_lv":"0",
	"reset_t":"4",
	"ch_flag1":"1",
	"inch_dp":"44",
	"module":"WB2S",
	"ch_cddpid1":"9",
	"clean_t":"5",
	"init_conf":"38",
	"led1_lv":"0",
	"cyc_dpid":"42",
	"ch_num":"1",
	"reuse_led_m":"0",
	"rl1_pin":"7",
	"netn_led":"1",
	"ch_dpid1":"1",
	"crc":"56",
	"}BAfsw_cnt_key0fsw_cnt_key":"2"
}

Build on Aug 15 2023 15:26:48 version 1.17.219
Online for 5 minutes and 45 seconds
Device MAC: CC:8C:BF:70:A0:6B
Short name: sk1, Chipset BK7231T

{
  "vendor": "Connex Connect",
  "bDetailed": "0",
  "name": "Smart WiFi Switch 10A",
  "model": "CC-P2000",
  "chip": "BK7231T",
  "board": "TODO",
  "flags": "0",
  "keywords": [
    "TODO",
    "TODO",
    "TODO"
  ],
  "pins": {
    "6": "LED;1",
    "7": "Rel;1",
    "8": "Btn;1",
    "26": "WifiLED_n;0"
  },
  "command": "backlog PowerSave 1;",
  "image": "https://obrazki.elektroda.pl/7322999100_1692195471.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic3995489.html"
}

{
  "vendor": "Connex Connect",
  "bDetailed": "0",
  "name": "Smart WiFi Switch 10A",
  "model": "CC-P2000",
  "chip": "BK7231T",
  "board": "WB2S",
  "product": "https://connexconnect.com/product/smart-wifi-switch-10a/",
  "flags": "0",
  "keywords": [
    "WIFI401-N-V1.2",
    "OB2222MCP",
    "AMS1117",
    "YX202-S-105D"
  ],
  "pins": {
    "6": "LED;1",
    "7": "Rel;1",
    "8": "Btn;1",
    "26": "WifiLED_n;0"
  },
  "command": "backlog PowerSave 1;",
  "image": "https://obrazki.elektroda.pl/7322999100_1692195471.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic3995489.html"
}

"pins": {
  "6": "LED;1",
  "7": "Rel;1",
  "8": "Btn;1",
  "26": "WifiLED_n;0"
}

{
  "vendor": "Connex Connect",
  "bDetailed": "0",
  "name": "Smart WiFi Switch 10A",
  "model": "CC-P2000",
  "chip": "BK7231T",
  "board": "WB2S",
  "product": "https://connexconnect.com/product/smart-wifi-switch-10a/",
  "flags": "0",
  "keywords": [
    "WIFI401-N-V1.2",
    "OB2222MCP",
    "AMS1117",
    "YX202-S-105D"
  ],
  "pins": {
    "6": "LED_n;1",
    "7": "Rel;1",
    "8": "Btn;1",
    "26": "WifiLED_n;0"
  },
  "command": "backlog PowerSave 1;",
  "image": "https://obrazki.elektroda.pl/7322999100_1692195471.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic3995489.html"
}