I've gone through this process twice now. I found this video also very helpful: https://www.youtube.com/watch?v=nYYdbk3U...
The little contact thing that sits under top screw is always the biggest hassle to fit back into place (I do it after attaching the battery cable) with tweezers from ifixit.
My personal tips:
- plan that the incredibly tiny screws or the top-screw contact thing, might get away from you. so work in a space where you can find them easily. Not over carpet, etc.
- I use strips of tape on a piece of paper to secure the screws while they are out, and position them so I know which one goes on top of battery connector, and the one on bottom.
- If you have access to a spouse's/mate's iphone, in Accessibility settings there's a Magnifier option (triple-click home button) which does an amazing job at magnifying stuff at a circa 4-6" distance. Lacking any good magnifying glasses, this feature helped a lot. https://www.imore.com/how-use-magnifier-...
READ THIS FIRST: All that stuff about removing cables at the top of the phone is wasted time and aggravation. Remove the battery cable cover, remove battery clip and replace battery.
Once I had the phone opened and did the battery clip step, I couldn't see any reason to remove those cables at top.
Googled, found this vid.. https://www.youtube.com/watch?v=sQqPm3Lm... and saved some time and trouble. No idea why iFix is recommending that extended useless process. Caveat is you will need to secure the top of phone or have a person helping you to hold it in place and not extend beyond 90 degrees.
Additional notes: my wife helped me with this and was way better pulling the screen with suction cup than I was (and we had to do that twice). Once you get enough opening on the screen, just use the pry tool to pop the clips; stick to the bottom half of phone when doing that. Finally, be gentle above all. these are small delicate parts. And ground your hands/tools by touching to a lamp or other metal.