My house has several smart Bond ceiling fans. I updated the firmware on all of them to 3.5. One of them keeps reverting to V2.15.8.2 (the others are fine).
The update itself goes smoothly. I get a progress indicator as it installs and then a screen that says I’m on the latest version. The phone was next to the fan during the update.
I can close and reopen the app and it still reports 3.5 (even the next day). However, if I use the app to turn the light on, I get a delay and then it reverts to default settings (Winter, breeze off, V2.15.8.2 firmware). There is no indication of an error in the app (Android 2.51.1-master3)
It’s done this at least 5 times in a row. Any idea why this fan is different than the others? They would have been purchased together. The controls work when on the older firmware. Power cycling the light doesn’t seem to help.
Edit:
After trying again, it errors during update (at 86%) with “There was a communication issue (error 107) Looks like your device is still on the previous version. Please try again.”