Top critical review
Poor TV with no quality control
22 January 2019
So, here is my story.
I am writing a review to encourage people to learn about the problems of the TV.
I got the panel from Mi.com. It was delivered according to the scheduled delivery date. However, the installation was delayed a couple of days. Not a big deal as I can wait for two days.
The first 3-4 months, the TV worked flawlessly. The picture quality was amazing and so on. I didn't think that I can get a better TV at that price. However, due to my lack of knowledge of TV and panel, I found the TV to be good quality.
However, I was so wrong!
The panel started to give problems in the 4th months. Two bright spots were generated at the top edge of the screen. That's why I raised a complaint to Mi. Their engineer called and said he would come. He delayed it for a few days, but I had my patience, so I waited. When the engineer came, he didn't acknowledge the problem with the panel. It took me 15 mins to make them see it!
After I convinced them, the engineer said that it is hard to showcase the problem to the headquarters and hence left by saying if it grows more, then do another repair request. So, I waited for a week, and the white clouding spots grew more, increasing from two to three. This time, they came and accepted the defect after I convinced them that there is a problem.
1st replacement panel
It took them ten days to deliver which I don't mind. It is a long process. After the panel came, the technician visited my place to fix it. The installation was done. However, the panel had more issues that the first one. It had 7-8 white clouding spots at the top edge. Out of frustration, I opened a new repair request. The engineer called me and was slightly rude to me. I explained the problem, and he asked me to wait again, telling me if the problem increases, then he will come.
Then, I waited for a week more, to find out that there is a black line generating automatically at the top. It was most probably the panel getting distorted due to pressure or bad build quality. I called the engineer and he came the very next day. He took photos and left saying that the panel will be replaced again. Awesome, I need to wait again for another panel?
2nd replacement panel
The 2nd panel came after eight days. I was slightly relieved as at least I am getting the service. But, the 2nd panel was also defective!! It has three white spots(not cloud) at the middle of the screen. This was one of the worst experience for me. Also, there was 7-8 dust stuck on the bottom section of the screen. I again raised a repair request. The engineer came, took photos and said the new panel would come in 8-10 days.
3rd replacement panel
The third replacement panel I received was better than the rest, but not free from any flaws. It was suffering from VERTICAL banding, which is also known as dirty screen effect. Technically, horizontal or vertical bands were seen when there is a uniform background, bands are seen. It is most prominent when the background is 5-20% gray which is close to the black color.
This means that watching sports, playing games would become hard on the TV. This time, I didn't go for replacement again as I feel harased. I will stick with the TV for now as it only impacts 1-2% of my viewing experience. Games are the most annoying to play as the bands are shown when there is a fast moving background horizontal image.
Don't go for this TV if you are looking for something good. All panels suffer from one problem or other. And, not to mention, the panel is not A+ grade. All of the Samsung 10 bit panels used in Mi Tv 4 have some form of defect which the general audience would not catch at all.
The issues with TV include
1. Poor edge-lit technology implementation.
2. Poor color uniformity
3. Tons of backlight bleed
4. Vignette: Black spots on the edges