Hello there,

1. Model: Samsung - model unknown
2. Problem/Faulty: Screen for flickering and would go black. Turning it on and off will fix the problem for a few min, sometimes hours. You can sometimes here the Bzzzz sound from the monitor. Currently, completely black, and turning on and off doesn't help anymore.
3. Repair Before: nope
4. Photo of defect: Just a black screen now.