I come with that problem too. It result it's a conector problem like it is said in motorola formus:
Thank you for providing me this information. I have gone back to our developers and confirmed a couple things. There are 2 different standards for headsets AJH and OMTP: http://recapmycalls.com/faq-page/hea...ards-ahj-omtp/
. The most common is the AJH standard. The Moto G 2nd Generation is only compatible with AJH headsets. The 1st generation Moto G was able to automatically switch between AJH and OMTP. The Nokia headsets that you have use the OMTP standard and aren't compatible with the new Moto G 2nd Generation. I hope that clears things up. Please let me know if you have any additional questions or concerns. I'll be here to help however I can.
I'll buy an adapter this week and see if it works. If anyone can confirm that with an adapter work let us know here. thanks
More info: https://forums.lenovo.com/t5/MOTO-G-...3038740/page/2