Use the flat end of a spudger to disconnect the battery connector.
This photo and tutorial doesn't show the shielding on the chips of the motherboard. And the glue…My pixel 2 had the volume button ribbon cable glued to the shielding. Carefully pry the cable off. Very carefully slide under it. Maybe use a little heat to soften the glue. You cannot just remove the motherboard with removing the ribbon cable for the volume buttons.
This photo and tutorial doesn't show the shielding on the chips of the motherboard. And the glue…My pixel 2 had the volume button ribbon cable glued to the shielding. Carefully pry the cable off. Very carefully slide under it. Maybe use a little heat to soften the glue. You cannot just remove the motherboard with removing the ribbon cable for the volume buttons.
Austen -