nokia cable

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You can also use Nokia DLR-3P data cable. Just cut off connector and wire RED to J2 pin 1 (+3.3V), GREEN to J2 pin 2 (RXD), GRAY to J2 pin 3 (TXD) and BLACK+SHIELD to J2 pin 4 (GND). Since this cable is normally powered by phone you need to connect J2 pin 1.

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