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LG OLED55B6P TV HDMI ports have been failing one by one
It is a couple years old, and its HDMI ports have been failing one by one over the span of months. Also, HDMI signals very occasionally black out for a few seconds and then come back. First, HDMI3 stopped working entirely. Then, HDMI2. Now, HDMI1 stopped, and only HDMI4 works at all. I've tried multiple devices as input, and rebooting & resetting the TV, but it doesn't make a difference. LG referred me to a technician, but it is out of warranty. Do you think this is likely a problem with the main board, and a replacement main board would be likely to fix it? Is this a relatively simple procedure? Thanks for the info!
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