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      03-16-2020, 01:17 PM   #66
daveshan
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Drives: 2015 M4, 2020 M340i
Join Date: Jan 2007
Location: California

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It was my understanding that only the front center console USB-A socket worked for data transfer (media), and that all the USB-C sockets were for charging only (with one exception related to the nav system). So I'm surprised that USB-C ever works for making your device show up as a media source.


From the online owners manual:

(Sockets section)
The total load of all sockets must not exceed 140 watts at 12 volts.

(USB interface section)

A USB interface is located in the center armrest.
Properties:
USB port Type C.
For charging of mobile devices.
Charge current: max. 3 A.
With navigation system: for data transfer.

A USB interface is located in the center console.
Properties:
USB port Type A.
For charging mobile devices and for data transfer.
Charge current: max. 1.5 A.

A USB interface with two USB ports is located in the center console in the rear.
Properties:
USB port Type C.
For charging of mobile devices.
Charge current: max. 3 A per connection.
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