Unknown changes in sound mode

[Mountainer]

Well, I had this issue for a long long time and now I approaching y'all,

My phone is a M20 with OneUI Core 2.0 on android 10 I know it's old but whatever, I definitely know it's not a hardware issue it's a software one as many people are still getting it In newer versions but they don't have clear solutions.

it's like changing to vibrate mode and to ringer mode like in the midnight I guess I recently cleared my nice catch history and this is the newer report.

So, what should I do to stop this thing which is giving me frustration?

A screenshot as proof.

[BlueStarn]

The only solution that I can give you is to factory reset.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern, we would request you to kindly perform the following steps to resolve your issue.

Clear app cache through Device care:
Settings > Device care > Storage > CLEAN NOW.

The clear cache memory of a particular application:
Settings > Apps > Now pick the app that you like to clear off the cache memory > Storage > Clear Cache.

Kindly clear the Ringer mode history once.

Reset the device Settings: Settings > General Management > Reset settings>Reset all settings to their default.

Update the software if available: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-update-software/

You can reset your device by following the steps from the below link.
https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-mobile-how-to-perform-a-factory-res...

If the issue persists, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Warm Regards,
Samsung Customer Support