My Xperia X dual goes to silent mode randomly without any reason. I have checked 'do not disturb' does not have any automatic rule. While this problem occurs, music plays fine through the speakers. Only no ringtone or notification sounds. I have run the diagnostics test and found out the earspeaker does not work during this problem. This issue happens randomly in every 8-12 hours. Restarting the phone fixes this issue temporarily. I have uninstalled all my third party apps but still the issue persists. Please help.
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