I have just bought a Bluboo XTouch smart phone running Android 5.1.
I have tried 3 different Sat Nav apps (from TomTom, Sygic and Google) and they all suffer the same strange issue...
For each app I hear only the very first voice instruction for the very first journey. After that, complete silence!
I have uninstalled and re-installed each app several times and restarted the phone many times. None of this helps.
Is this something wrong with Android or my particular phone?