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hi can anyone send picture of ttl pin out of vth 2622 monitor , after wrong firmware "web-x.squashfs.bin" stuck ina picture with man watching tv

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mainboard.jpg
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should be J17,
check for ground with multimeter and do not connect 5v or 3.3v !
you only need GND, RX, TX
if you know which one is GND, you can easily find rx,tx .. 50:50 chance to be correct firsttime
According to my experience, this motherboard uses VTHX6XXX-SX firmware.
And supports H.265