Bad news, I had to reboot because a theme was uninstalling and doing so returned the MIUI 13 logo. 😒

Any definitive and safe solution so that this does not happen to me again?

Already solved. 😀 From MIUI of my mobile, I touched the three dots and chose to download the latest package. It took a long time to download and install, but in the end it downloaded the same version that I was already using. The screen returned to light mode, then I will change it to dark mode. But the logo was corrected to MIUI 14 lol

That’s the mildest bug you’ll ever get using the Xiaomi stock ROM.

And what do you advise me to do to make it work safely?

I bought the mobile 5 days ago and it is under warranty.