2 weeks ago
Starting on Tuesday 20 September, my Asus Zenfone 9 keeps making a mysterious alert sound that I have never heard before. Every time this happens, no notification appears in the tray, so I don't know what is causing it. The sound is very frequent and totally unpredictable.
I have already tried closing all apps, restarting the phone and adjusting the sound settings. Even when the volume is set to zero, the alert sound still plays through the speakers.
I have attached a recording of the alert sound playing twice.
Thanks for any help you can provide!
Details:
Sunday
If the issue persists even after these steps, it might be worth contacting Asus support, especially since you mentioned that even lowering the volume doesn't stop the sound. There could be a deeper issue with the firmware. Official Login Link