I am using the charger & USB cable included with the device. I've tried every outlet in my home as well as in other buildings.
Thank you for the link however when I click on it I get an error message: 403 Forbidden - I do not have permission to access/docs/DOC-10438 on this server.
This is a replacement phone for one I'd lost. Same device, which actually would charge while powered on but rather poorly: the plug was ill fitted for the micro & rarely stayed connected. It would simply slip out & disconnect. I suspect I have a lemon. I've posted discussions of several other baffling problems I have with this device.