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I have a Samsung S-7 edge in less than two months of use, vertical purple line on the screen appeared. Screen replaced with a new one, and after less than a month the same line back in the same place. I tried to repair by clicking on the cable behind the screen where the light pressure when the line disappears. But I messed up the work of the screen entirely. The problem I am afraid that the screen was replaced and spent the money and then break down again. Any useful answer be gratefulbold text

Sounds to me like the digitizer connector socket has been damaged. It’ll need to be replaced with a new one. You can try iPad Rehab. They do excellent work

Try Pixel Fixer from PlayStore http://play.google.com/store/apps/detail