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USB Troubleshooting Guide

No Charging

Check that your USB cable is fully seated in both the charger and the device. Inspect cables and ports carefully to ensure that the contact pins inside are not bent or broken. Carefully remove and replace cables to ensure a good connection. Ensure power is supplied to the charger, or, if using a powerbank, ensure that it is charged and turned on.
Some devices require a minimum charging current to register that power is connected. If you have recently changed device, cable or charger, ensure that they are all compatible with the minimum required charging speed.

No Data Transfer

Not all USB cables are built with data transfer capabilities. Check to ensure you are not using a ‘charge-only’ cable, and that its rated data transfer speed is accpetable.
Some devices cannot transfer data over USB. By default, USB requires a host device, such as a PC or Laptop, and a sink device, such as a flash drive or printer. Smartphones and Tablets can be both a host or a sink depending on their software configuration, able to appear as a storage device to a PC or access a flash drive directly.
Always check to ensure that the devices you are connecting are designed to talk to each other over USB, as you may require an OTG cable or special hardware/software for special types of direct USB links.

No Video

USB Type-C Video Cables and Adapters rely on DisplayPort Alt-Mode support on the host (source) device to function. Thunderbolt-ready output socket are also compatible with USB Type-C Video Cables and Adapters, but only for direct connection to a display, without daisy-chaining.

Not all USB-C devices capable of video output support video over USB-C, so check your user manual to ensure DP++, DisplayPort Alt-Mode or Thunderbolt video output support to know if video can be expected.
Resolution and Refresh Rate are also factors in compatibility. Most displays will negotiate the highest common resolution available upon connection, minus any special features like HDR10. Consult the user guides for both the host and display to ensure your desired resolution and refresh rate are available, as well as the maximum specification your USB Type-C cable or adapter cable can support.
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