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If you are seeing an exclamation mark next to this device in your Device Manager, or if your USB-C ports have stopped charging or transferring data, you likely need to address a driver or firmware issue. 1. What Does the UCM-UCSI ACPI Driver Do? The name breaks down into three key technical parts:
USB Type-C Connector System Software Interface (UCSI) driver usb connector manager ucm-ucsi acpi device driver download
Understanding the USB Connector Manager UCM-UCSI ACPI Device Driver If you are seeing an exclamation mark next