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April 12, 2021 at 9:42 am #28786
Wolferl
Moderator

Hi Adam,

Since it has happended before: be sure to check the wall wart, they like to fail. These are standard 5V PSU models, just try your A3 with a standard USB PSU for phones or tablets you may have lying around.
The modules themselves are pretty reliable.

Cheers,
Wolferl