This issue has been resolved in the latest software version. Please stay informed about the mobile system update information and update it promptly.
If the problem persists after updating the Xiaomi 17 Ultra, please try the following troubleshooting steps:
1. Check if the relevant third-party applications are up-to-date.
2. Turn off automatic brightness or eye-protection display functions within the applications.
3. In low-light environments, conduct display tests using only the phone's system Home screen or system settings interface, without running third-party applications, and observe whether the screen brightness and display are stable.
4. If the problem continues, please contact the after-sales service center for further inspection.