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by zlsa
1262 days ago
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If the 5.1k pull-down resistors are missing on the device side, it will not charge from a USB-C wall brick, laptop, etc. in either orientation, but it will work fine when charging from a USB-A outlet with a USB-A to USB-C cable. This is because USB-C outlets are not permitted to provide any power until they detect the presence of a "legacy" device that just wants 5v (as signaled by the pull-down resistors on the device). |
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