Chosen Solution

I am replacing the screen on an iPhone 5S. When I go to snap the ribbon cables into place, the longest one will not snap into place. I can feel it “teetering” on the spot that it is supposed to go in to, but it is not actually snapping into place. Any solutions? EDIT: This is the cable that controls input from the digitizer

Inspect both the flex connector and the board connector for dust, hair, etc with a magnifying glass. Also if it seems like it is popping off easily after you get it to go on, gently push the sides of the connectors to cause a tighter fit. I assume you know to unplug the battery before connecting the screen, and to put the long screws for the screen connector shield closest to the top of the phone, but just for anyone reading this who doesn’t know, I mentioned it. That’s what worked for me. Best of wishes.

if you have the old screen it would be worth putting both flexs side by side to make sure the new one is undamaged. dont put to much pressure when trying to make the new one fit. the connectors on the board can be easily damaged.

I have the same issue - the original factory (cracked screen) digitizer - clicks right in (easily) - but the replacement part does not seem to fit in the port. It must be off somewhere. The parts look very similar (the apple part being cleaner). There is no dust in the connector. I’m on my second replacement screen and I have the same issue with the second part. I was able to power up the screen - but the digitizer does not work. Any hints or tips on getting this part to work would be appreciated. C

Ok - I managed to get the second part to work. My final approach to the digitizer was to angle the connector in at the non-cable end - and get that end seated then rock it down toward the cable end of the connector. That worked. Phone is fully operational and working great. Thanks, C