Fantastic guide. Enormous thanks to Marina Moore, iFixit, and commenters. Everything went fine here. Notes: Plastic camera lens cover came off with the back, thanks to strong adhesive nearby (only noticed when camera didn’t work, wouldn’t even open app, and back cover slightly seemed off, bulged; managed to get unstuck and place correctly, before back cover, camera now works magically). Used a T4 driver (not T3), fit perfect, no screw problems (using cheap kit, Inlife 81-part, 10-20 USD). Qi wireless parts are a total PITA, I just REMOVED ENTIRELY; couldn’t find much info on this, but seemingly no problems here. Battery seems to be fantastic, very noticeably longer runtime (purchased from iFixit, mfr LG Chem, almost identical to original). Awesome! My 2015-11 Nexus 6 is ready for another… decade?