Upon first boot, i noticed something was not right with the phone...the boot logo, the one that says samsung was jumping all over the screen from top to bottom. First i thought it was something with the boot but then things went really bad when it started to do the massive flickering while i was on the menu or running an app.
this is a video i took and i was able to record the most lasting glitch, all this flickering happens at random. There is no way to tell if it will do it or not, but happens multiple times during the day. For example i can play, watch an HD movie, i can use the phone normally without any problem for hours, then turn off the screen, turn it back on in some minutes and starts to glitch, or not glitch. It can or cannot happen, randomly, but happens.
Sometimes for example i turn the screen on, and stays black, i have to turn off the screen again and turn it on to make the graphics appear.
Sometimes for example i turn off the phone, after some minutes i turn it back on and the logo starts to move all over the screen for some seconds and stops and stays stable.
So practically i am out of warranty, the phone if from another continent. It says MADE IN INDIA on the back sticker, and came with android 4.3 and then it updated to 4.4.2 and same thing happens
I have to look on how to fix this on my own at the best price possible where i live.
The most dificult part of this is that i don´t know if this issue is tied to:
1) A bad LCD / Amoled screen,
2) If it is tied to a bad chip in MAINBOARD on the phone.
replacing the mainboard is cheaper than replacing the LCD screen, but im not really sure what could be the issue. and i dont want to waste money buying a brand new mainboard, change it, and the phone keeps glitching because the mainboard was not the issue.