I just got a Xiaomi 12 and I am loving it so far but the notification sounds are setting me off. I chose a sound for all notifications and the preview is very quiet (what I want) and all my volume ...

My Mi11 crashes and reboots when I try to change backgrounds through settings menu and other means, and I cannot find the Themes app anymore. What do I have to do to mend this problem? Tired of the stock background. MIUI ...