Nokia 1320 Blank White Display Solution by Jumpers
https://gsmfixer.blogspot.com/2015/12/nokia-1320-blank-white-display-solution.html
Here is a hardware repair solution for Nokia Lumia 1320 Blue, Blank and white screen problem. This problem may occur due to the water contact
with display IC so you can clean the water from the board using thinner or CTC. If you have done this step then go for the solution given in the diagram below.