Not user serviceable and warranty looks like 1 year.
Get repair estimate and compare to replacement cost.
I've had this monitor for a few years, but suddenly today it gave me problems out of nowhere.
My screen started flickering from a bright backlight to a dim backlight, the bright one being my standard one.
However my screen is now locked at having a dimmed backlight whilst my backlight settings are on max.
It now SOMETIMES still flickers, but not as often as in the beginning.
I've tried unplugging stuff to fix it and I meddled around a bit with the settings, but nothing seemed to work.
Does anyone know how to fix this or know what is causing this? Thanks in advance.