I’m amazed my phone works after all this. I must have done just about everything wrong. Good luck to everyone attempting this. My next phone will be an Android, just not yet now that I’ve successfully replaced the battery.
If you need to use dental floss, use the thin type and double strand it. Have extra on hand in case that breaks.
I think I had the extra-sticky and seriously old tape on my phone. The tape disintegrated at this part for me. Very frustrating. Use a double strand of dental floss and if need be, that black plastic scraper. Be patient and keep working on it. Set it down for a few if you’re ready to chuck the phone across the room and come back when you’ve settled down. Crying is optional.
You’ll want to secure each screw as you remove it - if you sneeze they will fly away and you’ll never find them. I recommend having a small bowl or container for each screw you remove and label them for reassembly.
These screws are tiny, and the first two are the biggest of the lot. Get a magnifying glass or good reader glasses.