I can not hear ear speaker but hands-free works perfectly even music..

Hello¡

I can not hear the ear speaker in calls but handsfree works perfectly even music or another sound. If i plug-in the headphones the simbol doesn't appears neither but they work perfectly, maybe the ear speaker is broken, How can i test it?

So i can attend the phone calls through handsfree or headphones but not with ear-speaker.

I have replaced the battery recently, so this could be the problem.

I really appreciate any kind of help

Thanks