[W600/TW-02] wall socket - SWP86-01OG (without energy measurement)

Hi, I'm sharing my device that I just successfully flashed. It's a wall socket without a power monitoring module and based on the TW-02 chip. There are other variants, see below.



I flashed 3 of them using soldering. Usually, I prefer the no-soldering method with Cloudcutter, but this time I had no choice (Tuya firmware v1.2.0).





So for flashing, I experimented 2 methods, both successful:

- Method 1: the w600tool Link . It's command-line based and only accepted .img files:



- Method 2: with the Upgrade Tools Link . only accepts `.fls` file.

Note: To start the writing process, briefly connect the GND to the RESET pin.

After the flash, I had to go into the web application to configure the pins using the GPIO Finder tab. I also preferred to change the default behavior of the LED:
- Red: WiFi not connected
- Blue: Relay ON
- Off: Relay OFF + WiFi connected



Other device variants:

CB2S/BK7231N
https://www.elektroda.com/rtvforum/topic3994030.html

https://www.elektroda.com/rtvforum/topic4054004.html

nice to see a W600 once in a while.

https://github.com/OpenBekenIOT/webapp/pull/147

I remember this socket. I made a teardown of it once.

Was there any datecode on the PCB of your piece? I wonder if they moved from BK to W600 and if they did, is it just temporary because of chip shortage or why...

Hello, yes I have a PCB version, check the photo.
I've had these sockets for several years and used them with LocalTuya before finally deciding to free them from the cloud
Motivated by my recent success, I ordered more on AliExpress, they're on the way. We'll see which chip they come with this time.