I believe is is the flexibility in the top case pushing the RAM off it's slot. The battery screw slots often break off, contributing to the flexibility. Missing or loose screws especially in the bottom case will also allow more flexing. Tighten everything, if you can't anchor the battery, shim it to keep it from moving when flexed.
I totally Mr. Myagi’ed it, by rubbing my hands together until they burned, then held the phone un my hot hands. I did this 5-6 times over a couple of minutes. It was a good zen way to get started!
I heated a stone pestle in the air fryer, wrapped in a cloth.
Reassembly note: Remember to tuck the logic board under the logic board grounding bracket that we loosened in step #44.
I hate getting the deep into a repair to find there’s a tool missing. This bit should be part of the toolkit!
I didn’t even have an eyeglass repair kit flathead, so I hit the end of a paperclip with a hammer to make a flathead, and it works!
They pull off to the side.
I totally Mr. Myagi’ed it, by rubbing my hands together until they burned, then held the phone un my hot hands. I did this 5-6 times over a couple of minutes. It was a good zen way to get started!
When Disk Utility refers to the “upper” drive, is that the bottom drive when repairing because it’s upside down?
Figured that out- remove the top battery! Sorry - didn't read through all the directions carefully!