Troubble
The charging current of the
external device is too high for the
USB device does
unit and the USB port is protected.
not charge
Too many connected USB
devices.
The device is
Too many open applications.
slow
Cause
Solution
If the USB device is fully
discharged or consumes a lot of
current, do not connect it to the
unit.
Close apps you don't need right
now.
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