The video shows the the tech heating the bottom at this so it releases easier. I heated mine with a hair dryer. Came off fine.
I bought a display assembly kit and a battery. I didn’t realize the adhsive slips are needed but not included with stand alone battery.
Now I’m phone less till the strips arrive.
Options for batteries should be
1) full kit, battery, tools and adhesive strips
2) battery and adhesive strips or
3) just battery.
Or or at least ask, “hey, you want strips with that battery?”