One day, my POCO F3 (REDMI K40/Mi 11X) suddenly shut down because the battery was completely drained. I didn’t even notice when it happened. After realizing it, I plugged in the charger but nothing showed up—no display, no vibration. I initially thought the motherboard was probably dead. Then, after a while, the battery logo appeared (which you can see in your first video). Still, the phone didn’t turn on. About 5–6 minutes later, it finally powered on and started charging normally. From the moment I plugged it in to the point it turned on, it took around 20 minutes in total.
So, that’s my real-life experience. Now the question is: why does this happen, and is it a bad sign if it happens frequently?
When a phone’s battery is fully drained and remains in that state for a while, it enters what’s known as a “dead battery” state. To recover from this, you should first charge it with a low-power charger (like 5–10 watts) until the phone turns on. Once it powers on and reaches around 10% charge, you can switch to the original (faster) charger that came with your phone. If this happens once or twice, it’s generally not a problem. However, if it keeps happening repeatedly, it can negatively affect your phone’s performance and health—and in some cases, the phone might become permanently dead.
