Flashing Guide for WB2S Tuya Action SmartPlug Power monitoring with BK7231T

Name: Flashing Guide for WB2S Tuya Action SmartPlug Power monitoring with BK7231T
Uploaded: 2024-06-24T23:00:35+02:00
Description: Hello everyone, I am making this post because I made a guide on how to flash WB2S tuya board with BK7231T MCU from the new Action SmartPlug. # Introduction This guide provides instructions for flashing the Action LSC Smart Power Monitoring Plug with the WB2S Tuya board, featuring the ( find the...

Question

Hello everyone, I am making this post because I made a guide on how to flash WB2S tuya board with BK7231T MCU from the new Action SmartPlug. # Introduction This guide provides instructions for flashing the Action LSC Smart Power Monitoring Plug with the WB2S Tuya board, featuring the ( find the...

Eltaistos · Accepted Answer

Hello,
Thanks for replying. The model is 3202087, the smart plug board number is WP02GE from 2023-09-05. I think this in a new version because they have changed the MCU from the last one.
For the OBK JSON, I have provided the JSON in the .rar archive, and I have referenced the picture and wiki link from this post.

Moderated By p.kaczmarek2:

This is actually 3202088 , as can be seen on the photo. Please do not confuse model numbers

Here the json in the archive :


{
  "vendor": "Tuya",
  "bDetailed": "0",
  "name": "Action LSC SmartPlug with power monitoring",
  "model": "LSC SmartPlug with power monitoring",
  "chip": "BK7231T",
  "board": "WB2S",
  "flags": "1024",
  "keywords": [
    "TODO",
    "TODO",
    "TODO"
  ],
  "pins": {
    "6": "Rel;1",
    "7": "Btn;1",
    "8": "LED;1",
    "10": "WifiLED_n;0",
    "11": "BL0937SEL;0",
    "24": "BL0937CF1;0",
    "26": "BL0937CF;0"
  },
  "command": "",
  "image": "https://static.elektroda.pl/attach/lsc_smart_plug_1266846.png",
  "wiki": "https://www.elektroda.com/rtvforum/topic4038087.html"
}

Here is the picture that I used to retrieve the given information.

board_ref_..._back1.png Download (300.67 kB)

board_ref_..._front.png Download (434.31 kB)

board_ref_..._back2.png Download (330.41 kB)

box_in..png Download (448.96 kB)

tuya_board..for.png Download (231.88 kB)

Plug_case..fo.png Download (347.87 kB)

p.kaczmarek2 · Answer

Thanks for sharing, I always use the same USB to UART converter as you. By the way, can you also share the model number of that Action plug? Futhermore, I also need OBK JSON format template for our devices list: You can copy it from Web App main panel. Also fill the wiki and image URLs

fletr · Answer

Hello, the model is 3202088 as seen on the pictures, not 3202087. I was just about to submit a new device teardown, not necessary as correct device model will now appear on the search.

g16pp1 · Answer

This is true, the model is actually 3202088. The topic for 3202087 is the following: anyone try using Cloud cutter to avoid disassembling the plug?

p.kaczmarek2 · Answer

That's a good point, I will make the correction. I will add this template with 3202088 name so it shows up on: Added:

nissa33 · Answer

Hello,Systematic error from the backup.Getting bus failed, will try again - 1/100!I checked my 4 solders, reversed TX and RXHowever, the LED lights up as soon as the backup is started.My model is the same of this tuto, 3202088Thank you for this tutorial.Nissa33

p.kaczmarek2 · Answer

Did you desolder WiFi module from the circuit?

nissa33 · Answer

No, I've soldered directly without desoldering the module

p.kaczmarek2 · Answer

well the first step is always to try desoldering WB2S/CB2S. You can check out one of our videos to see how we do it:

nissa33 · Answer

Ok I will try Thank you

p.kaczmarek2 · Answer

Let me know if it works for you, if not, we will try to think about some better solution

nissa33 · Answer

Ok, thanks

nissa33 · Answer

Hi p.kaczmarek2I've desoldered the module, but no chance, ever same error.

p.kaczmarek2 · Answer

Please provide a detailed photos of your setup

nissa33 · Answer

Too late, I put everything away. But I'm thinking of one thing, shouldn't we put the flashing mode first?

p.kaczmarek2 · Answer

It's not ESP8266, it just waits for reboot to flash.

I have another idea what could have been wrong.

There are CB2S/WB2S modules with wrong silkscreen marking.
You need to follow silkscreen from documentation:

The one on image is correct. The physical module may have swapped (incorrect) markings.

Futhermore, check out our whole flashing guides list:
https://www.youtube.com/watch?v=L6d42IMGhHw&list=PLzbXEc2ebpH0CZDbczAXT94BuSGrd_GoM&pp=iAQB
We have flashed quite a lot of BK7231 so far...

nissa33 · Answer

Maybe my module is defective. I'll buy another one and try again.I'll keep you informed

p.kaczmarek2 · Answer

Try different USB to UART converter. There is very, very low chance that the module is defective. I've flashed hundreds of Bekens and none of them were damaged. You can check out many of my teardowns on our Elektroda teardowns list:
https://openbekeniot.github.io/webapp/devicesList.html

kirfiiurhannurula · Answer

Hi, I also have a few ledvance plugs and one of them defected recently so I opened and fixed it and now I want to reflash it but I am on a MacOS system and can't run the flash tool so is there any alternative or something for macos?

p.kaczmarek2 · Answer

See readme for guide. BK7231N hid_download_py guide:

nicleroux35 · Answer

>>21086513 Hello!I noticed that several people encountered the same issue as me: Error Getting bus failed, will try again - 1/100! when trying to perform a firmware backup. To solve the issue on model 3202088:Getting bus failed, will try again - 1/100!You need to solder a second wire to the GND pin of your USB to UART adapter. And with this new wire connected to your GND pin, simply touch the CEN pin when performing the backup and also the flashing. Plug in your USB, set the correct COM port in the application.Click on Do Firmware backup (read only) to back up the original firmware.As soon as the message Serial port open! Getting bus... (now, please do reboot by CEN or by power off/on) appears, touch the GND wire to the CEN pin, and the backup will proceed.Repeat the same process when writing the new firmware.

geoffreymoga · Answer

Bonjour, j'ai bien flashé mes prises avec tuya cloudcutter, mais pour une j'ai mal renseigné les paramètres ip de ma prise, du coup je la vois sur mon routeur mais je n'arrive plus à accéder à la page des paramètres.
Y a-t-il un moyen ou une technique pour la réinitialiser ?

Merci d'avance

p.kaczmarek2 · Answer

You can recover device easily. See:

geoffreymoga · Answer

Merci, ça fonctionne.

p.kaczmarek2 · Answer

No problem, let me know if you need anything else, we're here to help.

scrumpydude · Answer

Just came to say thank you to the OP for the guide. My smart plug is flashed and working fine. I'll upload details of the plug later (not that I would recommend it).

p.kaczmarek2 · Answer

You're welcome, don't forget to turn on PowerSave 1 so the device can last longer. You never know with those cheap power supplies...

Flashing Guide for WB2S Tuya Action SmartPlug Power monitoring with BK7231T

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