HP Elite Dragonfly 13.5 Maintenance and Service Guide - Page 112
Smart card reader, Use this information to troubleshoot smart card reader issues.
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Table 6-42 Issues, possible causes, and fixes (continued) Items ● USB devices are not charging Procedures USB devices do not have the latest software drivers or port insufficient power, or the devices are not compliant. NOTE: USB Type-C uses a different connector entirely. Examples of USB device Not Recognized Troubleshooting steps 1. Unplug the USB device. Restart the computer (wait for 2-5 minutes) to reset the USB port or hub in case of a power surge. 2. Perform a soft reset (9. Soft reset (Default Settings) on page 69), and verify if the USB device is recognized. 3. Verify whether the USB device is recognized in Device Manager > Universal Serial Bus Controller, or the USB is recognized without a yellow warning symbol, or bang. 4. Verify whether the latest USB driver, USB chipset driver, or both are installed. You can remove or reinstall the USB driver. 5. Be sure the USB device is supported, for example, USB 3.0 device requires more power draw (0.9 A) from a USB port than a USB 2.0 device (0.5 A). As a result, identify the USB charging port to be used for charging a USB device, or an external AC power adapter might be required for an external USB storage device to work properly. 6. Test with verified working USB devices (keyboard, mouse, USB key) to be sure USB ports are functional. 7. Test the USB device on a verified working computer to be sure the USB device is not malfunctioning. Smart card reader Use this information to troubleshoot smart card reader issues. Table 6-43 Issues, possible causes, and fixes Items Procedures Symptoms ● Not recognized ● Unable to write Possible causes Physical damage, incorrect insertion, dirt, driver, malfunctioning card reader. NOTE: Some cards have a read-write security switch on the card. Be sure that switch is set to Write Enabled before attempting to write data to it. Card Reader Removal Policy Troubleshooting steps 1. Verify card reader removal policy. 2. Make sure there is no physical damage to the card. 3. Inspect the ends of the memory cards for dirt or material closing a hole or spoiling a metal contact. Clean the contacts with a lint-free cloth and small amounts of isopropyl alcohol. Replace the memory card if necessary. 4. Reinstall and update the drivers for the card reader. 5. Make sure the smart card reader is compliant with ISO 7816 Class A, B, and C. Smart card reader 103