My Smart Locks

Check if there is fireproof power on the USB port that causes a short circuit 

- Check if there is fireproof power on the USB port that causes a short circuit 

Clean the fireproof power using a cotton swab/ replace the USB port 

- Clean the fireproof power using a cotton swab/ replace the USB port 

DDL603E-5HWS Troubleshooting: USB port no power

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