I am new to this roku stick, and even though the power is connected to a USB adapter to a 120V outlet. It continues to state low power, your TV doesn't have enough power. But the thing is the stick is not connected to the TV but to a 120V outlet via a USB adapter. What is the issue ?
Are you using the charger that came with the stick? They don't all output the same amps - read the (usually tiny) print on the charger. Also, have you tried a djfferent USB cable?
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We are having the same issue but we have the roku adapter for the 120V and the USB. I tried going to the website for instructions that was given on the low power message and the website is not loading.