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JTAG pads and other undocumented connectors on X2 PCB?

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    JTAG pads and other undocumented connectors on X2 PCB?

    Hi,

    I just started to create a device page for the Beelink X2 on sunxi based on what I found out about the device so far and a few educated guesses (including what company the original manufacturer of the device is...).

    For this, I would like to document the unlabeled connector (hole)s on the PCB. So far, I am figuring out the UART pinout.
    However, there are additional pads available. On the back side of the PCB, there are six exposed pads that could be a JTAG port - if this is true, does anyone know the pinout?

    In addition, there is an unpopulated four pin connector close to the IR receiver/power button. Is this an additional USB port for an alternative WiFi chip or maybe Bluetooth module?

    Please feel free to make additions to the X2 wiki page or provide me with updates, I will happily add them to the page.

    -- Michael
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