YOU SAID:

My cell phone isn't working.

INTO JAPANESE

私の携帯電話が動作していません。

BACK INTO ENGLISH

My phone is not working.

INTO JAPANESE

自分の携帯電話は動作しません。

BACK INTO ENGLISH

My phone does not work.

INTO JAPANESE

自分の携帯電話は動作しません。

BACK INTO ENGLISH

My phone does not work.