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[LG monitor] The smartphone cannot be charged — LG Help Guide

Some monitor models do not support the USB PD, so check if the USB-PD is supported.

[LG monitor] The smartphone cannot be charged LG USA help image
TroubleshootingMonitors

What to Check First

  1. The smartphone cannot be charged through the monitor and the USB-C cable.
  2. The smartphone cannot be quick charged. If the smartphone cannot be charged, check the USB-C cable connecting the monitor and the smartphone.
  3. USB PD (Power Delivery) is a power delivery specification that supplies power to the USB-C port.
  4. In the case of earlier USBs, only power supply up to 15W was possible, but cables supporting USB PD 4.0 can supply power up to 100W.
  5. For monitors with USB PD specifications, the USB-C port can be used for charging and monitor output at the same time.
  6. The amount of power supported may vary by monitor.
  7. Since not all USB-C shaped adapters support USB PD, you can check whether or not USB-PD is supported in the product manual.
  8. Some monitor models do not support the USB PD, so check if the USB-PD is supported.
  9. ➔ You can confirm if the USB-PD is supported by checking the user manual for the monitor product.
  10. ※ Some monitor models do not support the USB PD, so check if the USB-PD is supported.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for [LG monitor] The smartphone cannot be charged?

The smartphone cannot be charged through the monitor and the USB-C cable.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

Smart featuresMonitor Smart Features, Apps & Connectivity GuideEfficiency & running costMonitor Efficiency, Energy & Running-Cost GuideHousehold use caseMonitor Family & High-Use Household GuideFeatures & valueMonitor Features Worth Paying For — Value Guide

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Read the Official LG Guide