anker earbuds not working

hi there , so my anker earbuds are not working, i tried removing any dust particles from the earbuds they dint make a difference first only one side was working now both are NOT so i opened up the motherboard area any idea how to fix it further? any response would be great. thankyou.

What are the earbuds called? When did you buy them? When you said motherboard area, did you take the earbuds apart?

Describe not working. Won’t turn on. Won’t play sound. no Bluetooth connection