Phone shows no light or any message on the screenIf the devices has all light off and the screen is completely empty, this is a problem with the power supply
Please make sure the power supply is connected on the back of the devices as show on the picture and to an electrical outlet, if this don't turn the lights you can test by using ‘Same Model’ power supply from other phone Also test for power at the electrical outlet by connecting a lamp or any other devices on it, remember the sometimes the electrical outlet can be control by an electrical switch.
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