My HoloLens won't turn on

"My HoloLens 2 device fails to power on. When attempting to press and hold the power button, there is no response from the device. The battery indicator light near the power button does not illuminate, and there are no visible LED patterns (e.g., blinking lights) to indicate charging or boot activity. The device remains completely unresponsive, even after connecting it to a power source via the provided USB-C cable for extended periods (over 30 minutes).