I need help identifying the UART or JTAG connections on this board.
I would like to dump the firmware using a pirate bus.
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In the second picture on the bottom there is an nonpupulated connector, whose pins are labeled RX and TX. Thats at least one of maybe more uart interfaces.
You should additionaly check the traces on the pcb between that connector and the main micro controller. It might be that the nonpopulated pads at R1 need to be shortened to have a connection.