@dlcatftwin 100% on point. That’s exactly why I’m reading this comment right now. I’ve never heard of a “Battery Isolation Pick” and I was trying to get the connector loose, before realizing it wasn’t coming easy and therefore reading the comments for more info.
Ergo, there is some confusion here that should be noted in the primary instructions.
Dude. Duuuuuuuude. You are a life saver, Adam! Thank you so much for mentioning this. I used a pushpin (like one of the previous commenters) because the crud was so packed in there, I needed to use the sharp (but not too sharp) tip to carve into it and dig it out.
Now it works perfectly!
I was dreading complete disassembly of the phone. But yeah, I've never done this since I got the phone, like 3 years ago.