Why does the Xiaomi 15T Pro show a black screen and fail to power on?

Question

Accepted Answer

Thank you for your support of Xiaomi. On the Xiaomi 15T Pro, a black screen and failure to power on can occur if the battery is completely drained. When this happens, the device requires a minimum of 10 minutes of charging before it can be activated.
Once the battery reaches the required voltage, the phone displays the charging icon before allowing normal activation. Pressing the power button before sufficient charging does not initiate startup.
To resolve the issue, connect the phone to a compatible charger and charge it for at least 10 minutes before powering it on. Adequate initial charging helps the device stabilize, prevents activation errors, and ensures normal operation and battery performance.