Please let this thread be a tech discussion, just use button thanks.
I got more information there : http://droiddevice.ru/download/mtk6589/MT6589_Technical_Brief_v0.2.pdf
It seems URXD1 is RX for uart1 (same for others pins, UTXD1 = TX uart1)
Now I need to locate GND pin and I wonder what is the UTXD1 pin (check the picture, it seems confusing a bit)
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