Remove sim tray first

Pop off the plastic back

Disconnect the lock button flex

Take the screws out

They're all the same size

Remove plastic covers

Unclip flex cables, starting with smaller

Unwind grounding screw

Disconnect antenna

Pop off the main board from Sim tray slot with spudger

Pop the flex off

Lift board with ease, kindly minding the adhesive

Put flex cable out of the way

Credit-card size plastic tool

Wedge between the side of the battery down to the corner and apply isopropyl alcohol

Tilt camera end up to avoid leaking into battery

Pry up the battery being careful to not damage it