HP ZBook 14u G6 Maintenance And Service Manual page 139

Table 8-42 Issues, possible causes, and fixes (continued)
Items Procedures
2. Soft Reset (9. Soft reset (Default Settings) on page
recognized.
3. Verify if USB device is recognized in Device Manager > Universal Serial Bus
Controller, or USB is recognized without Yellow bang.
4. Verify if the latest USB driver or/and USB chipset driver are installed. USB driver
could be removed and reinstalled.
5. Make sure USB device is supported, for example, USB 3.0 device requires more
power drawn (0.9A) from USB port than USB 2.0 device (0.5A). As a result, identify
USB charging port to be used for charging a USB device, or an external AC power
adapter may be required for an external USB storage to work properly.
6. Test with verified working USB devices (keyboard, mouse, USB key) to make sure
USB ports are functional.
7. Test USB device on a verified working computer to make sure USB device is not
malfunctioning.
92) and verify if USB device is
Common issues and possible solutions 125