I have a similar problem with the same phone, though it may not be identical. After some time (maybe several days) there is no ringtone when receiving a call. Trying to change volume or ringtone in settings does not solve the issue. None of the ringtones can be heard. Only after a reboot sound is restored.
I have a similar problem with the same phone, though it may not be identical. After some time (maybe several days) there is no ringtone when receiving a call. Trying to change volume or ringtone in settings does not solve the issue. None of the ringtones can be heard. Only after a reboot sound is restored.