My laptop is not turning on. Power button is just blinking.

Basically, yesterday, I was watching YouTube on my laptop when I noticed my battery was low. I reached for my charger, but right as I wanted to plug it in, the laptop shut down. I plugged the charger in regardless and I went outside for a walk. I stayed outside for about 30 minutes. When I came back, I tried to turn my laptop on, but it didn't work. The power button just glowed and turned back off. I tried holding it down for about 30s, but still didn't work. I decided to let it fully charge, which I did. The laptop has a little light that turns red when it is charging and white when it's fully charged. I noticed the light was white, so I tried turning it on. Nothing changed. I tried unplugging the battery, holding the power button down for 30s and plugging the battery back in, but yet again, didn't work. Anyone has any ideas? I'd really appreciate some help here. My laptop is an Asus Laptop by the way.

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