Siri and DIctation doesnt work unless using earpods, microphone works fine with calling and voice control.

So siri dont work in my Iphone 5c 8.1.3 IOS. Tried to reset everything, checked all settings. She just cant hear me , the sound wave is moving even if its totally silent there. If i use Voice control or phonecalls it works fine. If i plug in my earpods or other 3.5mm headphones (like razer) then works fine. Help me fix it.

Thanks