Chosen Solution
Just carried out a screen repair on an iPhone 7 Plus. Sometimes when waking it up, the screen will be of a largely rainbow tint on the left side. Touching the screen or moving it around solves the issue. Anyone have any idea what this could be? I have attached a picture of the phone prior to the repair and a video of the rainbow. Thanks in advance.
Is there any spongy feeling when you lightly press down on the screen on the bottom right corner? If not return the part and get a replacement screen. Could be a bad LCD or you screens IC is being pinched between the bottom of the logic board and loud speaker.
