Display Problems with New LCD's
I just bought an Iphone 6 Plus from someone because he couldn't get a SIM card in from Pocket bend...but phone was functional.
I replaced the Mid (Back housing) that was bent, and in doing so, I think I broke the digitizer but no cracks in glass.
From the bend, it was extremely difficult to raise the screen and I heard a pop (Crack) and from that point, the digitizer did not work but LCD does.
I have another Iphone 6 plus 100% working, so I tested that screen and I can see the backlight when I power it up but no picture. I just received a new screen assembly today and that one does the same thing! It turns on, connects to Itunes, but no display....just a backlight. So, I put the original back in and it does display a screen.
I have tried 3 screens now and none of them display a screen except the original one. I moved the original to my other phone and sure enough, the digitizer does not work on that one either, so I do not believe it is the Touch IC's since it does the same thing on my working phone.
Am I missing something? Why would original screen work (Display an image) but 3 others that I know work, do not? I looked under microscope and no physical FPC connector damage on Logic Board or phone Flex.
I reballed the Meson and Cumulus and no change.
Is this a good question?