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- Aug 3, 2019
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After 30 days of waiting from aliexpress my AIYIMA A07 arrived, tried and it doesn't work, not even turn on the light
Check the power supply for sufficient voltage and the power cable/connector (solderless 5.5/2.5mm barrel connectors can be tricky to attach securely!) for continuity with a multimeter -- something like that is much more likely than a defective new amp, at least in my experience.