Asus Zenfone 8 always occur Echoing sound while having phone calls in speaker mode

[alexweiheng7]

Please tell us some basic information before asking for help:
Model Name: Zenfone 8
Firmware Version: 31.1010.0410.43 (just upgrade to android 12)
Rooted or not: not rooted
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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When I am having a call with anyone (even using internet call or normal cellular call). and I turn on my speaker mode, my Zenfone 8 will have very loud echo sound until it is very hard to bare.
I have test voice recorder and speaker, all was ok and even tested at in calculator apps with .12345+=. everything was fine.
I have just bought this phone and barely even use for few week and started using it and this occur 😥.
right now I am still finding ways to rollback to android 11 and hoping that is it software problem.

thank you.

[dron39]

I had this problem since beginning and for me it was hardware problem. First time when I sent my phone to authorized service centre they fixed it only for hands free mode (bluetooth) in my car, but problem left for speaker mode. After second repair - they fixed it finally.
But for them who experience this problem since some SW update, I hope it's not HW problem.

[agavenas9]

Same problem. It's so sad. But yesterday it was an update, but problem still not fixed. Most of the time I'm using my asus zenfone 8 on loudspeaker and the callers complaining that its imposible talk with me because o the echo. Could warranty fix that or not?

[dron39]

agavenas9

Same problem. It's so sad. But yesterday it was an update, but problem still not fixed. Most of the time I'm using my asus zenfone 8 on loudspeaker and the callers complaining that its imposible talk with me because o the echo. Could warranty fix that or not?

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Of course. I wrote above that it has been fixed by authorized service center (by warranty).

[upsettingedvin]

I've got the same problem

[dron39]

upsettingedvin

I've got the same problem

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If you can not fix it by factory default settings, then it's better to send phone to authorized service center by warranty if you still have warranty.