Why is my light bulb not blinking?

To set up the light bulb in configuration mode, you should turn it on-off-on-off-on and wait for 5 seconds. The light bulb will start blinking or breathing.

For the configuration mode, there are 2 Types of LUMIMAN smart bulbs.
Classic Version :
EZ mode: Blinking 3 times per second in cool white;
AP mode: Blinking once every 2 seconds in cool white.
Updated Version: 
EZ mode: Breathing 2 times per second in warm white
AP mode: Breathing once every 3 seconds in warm white

Here is a video of the bulb's status for your reference.