Xiaomi Note 15 Update Caused My Call Ringing Volume to Drop

Yesterday, I installed the latest software update that was delivered to my Xiaomi Note 15 device through the system update feature. Immediately after completing the update, I noticed a serious issue when making phone calls. The ringing tone that normally plays while waiting for the other person to answer has become extremely quiet and is now almost impossible to hear.

I do not experience any audio problems during actual conversations. Once the call is connected, both incoming and outgoing voice quality are normal. The issue only occurs when I place a call and wait for the recipient to answer. Because I can barely hear the ringing tone, the calling experience has become frustrating and inconvenient.

Based on the timing of the problem, I strongly believe this issue was caused by the most recent software update. The problem did not exist before the update was installed and appeared immediately afterward.

I request that Xiaomi investigate this software-related issue and release a corrective update as soon as possible. I would like the call ringing volume to be restored to its previous level and for this software bug to be permanently resolved through a future update.