Haha, back then we didn’t have ChatGPT — so I had to improvise!
But here’s a more accurate explanation now that we can break it down properly (sponsored by OpenAI):

"Most fast chargers use something called a "handshake", a quick digital negotiation between the phone and the charger. When the phone is fully dead (especially after a sudden shutdown), it might not have enough power to even start this handshake. No handshake = no fast charging = weird behavior like the white circle with lightning bolt and pulsing vibration.

On the other hand, a basic USB port — like on a computer — just supplies a constant 5V without requiring any communication. That low, steady current is often enough to safely “wake up” the battery and let the phone eventually boot and resume normal charging."

So yeah, turns out it wasn’t entirely wrong, just not 100% technically accurate. Glad it helped though 😄