Hello, Sorry to post about this as I'm a new member to register however I have been a regular reader for a long time. I have an issue with a Samsung ue40mu6120 I bought from richer sounds at the end of November 2017. I didn't actually use the unit until late February /march because I was renevating the room for the TV to go in. After installing the TV on the wall bracket. I noticed certain things that didn't seem right with the television. Some menu items at first didn't work. Aspect ratio did not correctly set 4:3 images as 16:9. The apps sometimes hung and the TV restarted itself. Then the problem got worse the TV would randomly crash and shut it self down. Then I would have to pull the plug out the wall and restart. I first contacted richer sounds who put me through to there support, then I got cut off. So I emailed Samsung direct after getting a reply I responded again, and they did not respond back to my email. I did numerous resets including a factory reset but it did not work. I then received a call from Samsung around a week later and the customer support agent was unhelpful. They then said they would raise it to a senior agent but I never got a call back. After living with the issues, Around a month later the TV crashed and turned itself off. But this time it completely would not turn back on. There was no power led atall. I called richer sound the next day and informed them again. I got transferred to Samsung because it was under 12 months old. The customer support agent connected to my phone to view the issue and stated it was a power supply problem and said they would arrange a repair agent to come and repair the item. When the engineer came they fitted a new power supply board in my house to the TV, but it did not fix the problem so they took the TV away, they stated they replaced the main board. I have now had the TV back two weeks and exactly the same fault has happened again no power and the TV will not turn on, no power led etc. I now have no faith in this TV now, I have no faith in this model and certainly no faith in the repair work being undertaken. Can anyone advise me what I can do in this instance? Considering its been repaired once and broke again? I am sorry for the long winded message. Kind regards.