(UPDATED) DJI Phantom 3 / Advanced / Professional Troubleshooting (Why, How to Fix)

I notice that many people are searching about different DJI Phantom 3 problems. So I thought that it would be helpful if I could write an article about those Phantom 3 issues. Then I went through many DJI forums and collected the most common and fixable issues. So in this article let's see what are