I bought a "Cync" bulb from GE and had to reset it, I couldn't for the life of me. This is their official video on how to do it:
You have to repeat a sequence with near perfect timing, that takes about a minute straight. Since we moved, I had to do this for 4 lights and wanted to tear my hair out, lol.
I've found that for whatever reason, "smart home" stuff is some of the worst designed and managed products out there.
We recommend counting with Mississippi (1 Mississippi, 2 Mississippi, 3 Mississippi, etc.).
Start with your bulb off for at least 5 seconds.
1. Turn on for 8 seconds
2. Turn off for 2 seconds
3. Turn on for 8 seconds
4. Turn off for 2 seconds
5. Turn on for 8 seconds
6. Turn off for 2 seconds
7. Turn on for 8 seconds
8. Turn off for 2 seconds
9. Turn on for 8 seconds
10. Turn off for 2 seconds
If the factory reset above was unsuccessful, you might have an older version of the C by GE bulb. Please follow the instructions below to reset.
Bulb Reset Sequence – for firmware version 2.7 or earlier:
We recommend counting with Mississippi (1 Mississippi, 2 Mississippi, 3 Mississippi, etc.).
Start with your bulb off for at least 5 seconds.
1. Turn on for 8 seconds
2. Turn off for 2 seconds
3. Turn on for 2 seconds
4. Power off for 2 seconds
5. Turn on for 2 seconds
6. Power off for 2 seconds
7. Turn on for 2 seconds
8. Power off for 2 seconds
9. Turn on for 8 seconds
10. Power off for 2 seconds
11. Turn on for 8 seconds
12. Power off for 2 seconds