This is the why i write about IPhone 6s logic board repair…
Many person tries to change LCD Display byself. In this time there is no importance the “experience” word. The connectors of the LCD Display on board too gentle. So when you try to press display connector to board in same time happens (if you havent experience) that fault.
Near the connectors there are components. Someones are display filters someones are backlight fuses. If there any broken or botched components you must check it than you can get repair at our services.