Please tell us some basic information before asking for help:
Model Name:rog 3
Firmware Version:.78
Rooted or not:not
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I tried to download the pure color blue picture for screen test i found many black pixel but when looking in different color i cant see the black pixel. Is it a stuck or a deadpixel?