I have a smart phone running the Android 6.0.1. Using Navigation Function of Google Maps is much needed to my job. Especially, my favorite habit is hearing the navigation voice during the route. Recently, I have updated Google Maps to the latest version. I found that the navigation voice has not been working as earlier time. During my route, it delivered the only notice when I was about to reach the destination. I want it to work again. For my country (Hanoi, Vietnam), is Google disabling the Navigation Voice of Maps?