After a month of use (or maybe earlier, I didn’t notice right away), the backlight began to vilely whistle with high-frequency roulades. It is especially evident at low brightness of the backlight in blue tones. The squeak disappears only when the backlight is turned off entirely. It’s a pity, but I don’t want to get hemorrhoids with a guarantee for such garbage, I’ll have to turn it off . Asus is sad((((