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Screen flickering is usually a driver or refresh-rate issue. A quick test tells you where to look first.
Quick test: is it the driver or an app?
Open Task Manager (Ctrl+Shift+Esc). If Task Manager itself flickers, it's likely a display driver. If everything except Task Manager flickers, an app is the cause.
1
Update or roll back the graphics driver
If flickering started after an update, roll it back; otherwise update it (Device Manager → Display adapters).
If flickering started after an update, roll it back; otherwise update it (Device Manager → Display adapters).
2
Set the correct refresh rate
Settings → System → Display → Advanced display → choose the recommended refresh rate.
Settings → System → Display → Advanced display → choose the recommended refresh rate.
3
Uninstall a problem app
Common culprits include some antivirus and older display utilities. Remove anything installed just before it started.
Common culprits include some antivirus and older display utilities. Remove anything installed just before it started.
4
Reseat external cables
For an external monitor, a loose or damaged HDMI/USB-C cable causes flicker — reseat or replace it.
For an external monitor, a loose or damaged HDMI/USB-C cable causes flicker — reseat or replace it.
Tip: Persistent flickering that follows a specific area of the screen, even in the BIOS, can indicate hardware — contact support so we can check it under warranty.
Still stuck? Contact our support team — every NXTCORE laptop includes a 1-year warranty and real human support.
