I have installed a switch (bought at HomeDepot) yesterday.
This has the firmware 1.2.16. In the app (iPhone) is offered with the update to firmware 1.2.23. The update starts, the switch flashes as intended. At some point the fun is over, no update to 1.2.23 performed. The Wifi connection is according to the app 3 bars.
Sometimes the update completes and the refresh doesn’t occur in the app. Try backing out of the app completely, restart the app and check your switch firmware version to see if the update actually completed successfully.
But it did not bring anything.
And also after a reset of the switch there is no update to the new firmware.
I don’t think it’s my network. All other Wyze devices (doorbell, cameras) update without problems. The bandwidth is fine. The doorbell is less than 2 yards away from the new switch and works perfectly on the network.