Chosen Solution
Hi. I have changed my LG g3 screen only a month ago, and now there are many white columns on it. It is okay, when I just turn it on, but after several seconds white columns starting to appear. Please tell me, need I change it again, or there is another simple solution. Update (06/02/2016)
here es what it looks like
I would first check the connection for the LCD but most likely you will have to replace it again.