Unhappy [Q] No tone in my phone S4 i337m after flash modem

Hi i have a problem two days ago try to upgrade my modem on my s4 i337m from there im not able hear tone when i dailg, some times im able to hear others no but the other person get the call but they can not hear me, i try to reflash stock modem chance to stock rom also try to factory restore and wipe cache and wipe data and still same problem can some help me. mi phone is from telcel mexico.