20v 4.25a High Quality Replacement Charger Adapter

20v 4.25a High Quality Replacement Charger Adapter

• If the USB device does not work with the Mac, check as follows
  
  
• 1. Check the Power Supply and cables to make sure the USB device is open and its cables are connected correctly.
  
  
• 2. Check for missing software and make sure the latest software has been installed on the device.
  
  
• 3. Check the USB hub. If the device is already connected to the USB hub, make sure the device and the hub have the same speed.
  
  
• 4. If the device does not have a power cord and has been plugged into another USB device without a power cord, try to plug the device directly into the computer's USB port or into a USB device with a power cord. If there is no response, you may need to disconnect and reconnect to another device.
  
  
• 5. If you have many devices connected to a Mac, disconnect all USB devices except the one you are testing.
  
  
• 6. Verify that the device is present in system information.
  
  
• 7. Restart the application, exit and restart any applications using the device.
  
  
• 8.Reboot the Mac.

• Shenzhen Waweis Technology Co., Ltd. is a high-tech enterprise engaged in r&d, production and sales of notebook adapters. Main: switch power supply, power adapter, charger, LED power supply and other products professional production and processing. The products have passed CE, FCC, and other certifications. The products produced by the company have perfect protection function, stable performance, safe and reliable. With professional r & d, production and sales experience, the company has accumulated strong technical advantages and rich market resources in the field of power adapters. The company is now able to provide a full range of alternative adapters for the world's major brands of notebook computers.

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