Why doesn't the Xiaomi 15T Pro power on while charging?

Thank you for your support of Xiaomi. On the Xiaomi 15T Pro, the device can not power on immediately when connected to a charger if the battery level is below the required threshold. In this case, the phone will display a low-battery charging screen instead of activating normally.
This is part of the device's low-battery protection mechanism. The system ensures the battery reaches a safe operating level before starting the normal power-on process, preventing errors or potential damage during startup.
Once the battery has enough charge, the phone powers on normally. To avoid delays, use a compatible charger and let the device charge uninterrupted until the battery reaches the minimum safe voltage. This ensures stable operation and maintains the long-term performance of both the battery and the device.