I have 2.5 year old Samsung TV QN55QN90AAFXZA Version AA06 Manufactured Dec. 2021 that has recently developed a problem. The red LED status light blinks randomly while the TV is on or off, and the infrared remote either doesn't work or operates the TV unstably (onscreen menus randomly disappear), while the Bluetooth One remote doesn't encounter the same problems to the extent of the infrared remote. Nothing else seems to be wrong with it. I haven't disassembled the TV to see if the issue lies with the main or power board yet. I worked quite a bit on the previous Samsung TV that this replaced. Any thoughts on whether it's the power or main board? I've unplugged it from power for a long period of time. Did a factory reset. Unhooked all HDMI and RF connections to no avail. Sometimes the TV will not exhibit the problem. Disappointingly, this Samsung TV ran about half as long as the last before a defect surfaced.
