Ear speaker suddenly stoped working

My top speaker stopped working, and the bottom speaker started working all the time.
Rebooting the phone did not help.
Detaching the top module and attaching again did not help.
I bought the brand new top module for Fairphone 3+. Did not help.
Test ##66## > Service test > Speaker allowed my phone to reproduce Chinese song from the bottom, load speaker, not earspeaker.
However, the phone produced sound through the earphone while testing the microphone using another test app: Speaker and mic > Receiver and mic https://play.google.com/store/apps/details?id=com.idea.PhoneDoctorPlus
I loaded in safe mode but it did not help to hear sound from the ear speaker. Factory reset also did not help.
Any suggestions?