Remove the two 3.6mm Pentalobe screws with the appropriate screwdriver.

Make sure the terminal is off.

Hold the screen with a suction cup, just above the home button.

With an opening tool, push the chassis down while pulling the suction cup in the opposite direction.

It must do some strength and persist because in this model is quite tight.

The screen is still held by the flex cables of the digitizer and display. Handle with care not to damage these cables.

Remove the metal shield covering the connectors. It is held by 3 Phillips screws.

Disconnect the 3 flex cables and separate the screen.

Remove the metal shield covering the battery connector.

It is held by 2 Phillips screws of 1.8 and 1.6 mm.

Disconnect the battery.

The battery of this model is stuck and it may not come easily.

Remove it a little earlier, carefully prying it with a plastic tool.

Be careful not to deform the battery as it may damage it.