Chosen Solution
touch screen was working before repair. Did the repair and now the touch screen will not work.
On that cases there is possible region that below in my experience.iPhone 6s plus have one connector for Lcd,touch and 3d touch. 1- connector pin must be broken. 2- Parts near connector might be open or broken. 3- If the phone is on and insert Lcd makes some parts burnt or damage. Observe carefully hope you got the solution.
