Hello, I have an iPhone 6s Plus. I have trying to help repair the screen for a friend who has a 6s. We bought a screen on eBay, and it doesn't seem to work on his iPhone 6s. Now, my iPhone 6s Plus has been repaired before, so its been opened up before. I wanted to find out, could I connect, just connect nothing else, the 6s screen that we bought on eBay on my 6s Plus just for testing purposes, to eliminate if its the screen thats faulty or something else. Will the connectors be the same size. I won't close the phone because I know the screen sizes are different. Thanks.