Can't reset Mi Desk Lamp

Hi, guys!
I have a problem with my Mi Desk Lamp (model: mjtd01yl).
I want to reset the lamp to connect it to a new wifi, and I can’t. I push the RESET button for 5 seconds (or more) but the lamp doesn’t blink.
What can I do?
Thanks for your time, really appreciate it!

Hi guy,

Could you record a video?