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.

[arielsajda]

😞 it is not good 😞

[ASUS_Bot]

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