Hi, sonoff dual channel type CK-BL602-4SW-HS(139) missing support of CAST. This product appears on web interface (show as supported) on https://web.ewelink.cc but not when I try to insert them in a CAST. Please fix it!
I notice that I’ve to set a scene with only one CK-BL602-4SW-HS to work! It’s strange that individual devices are not seen in CAST, but they work within the scenes in CAST.
Device: CK-BL602-4SW-HS
Firmware: 1.6.1
I’m experiencing two related issues with this device (i have 4x of these 4ch switches so i’m pretty sure is a common software issue):
1. WiFi reconnection is inconsistent — usually requires a power cycle
The device doesn’t always reconnect after losing WiFi, but the behavior is inconsistent: once it goes offline, it rarely comes back on its own, and in most cases only a manual power cycle brings it back online. This seems to happen more frequently when the WiFi signal is weak, suggesting the reconnection logic may not handle marginal signal conditions well, or gets stuck in a bad state after a drop rather than retrying properly.
2. Switch states cannot be read while the device is only reachable via Bluetooth
When the device falls back to Bluetooth-only mode (WiFi unavailable), the app shows the device as reachable but the four switch buttons all display the same generic power icon, with no indication of which channels are actually ON or OFF (see attached screenshot). This makes it impossible to know the real state of the switches until WiFi comes back.
