Remove SIM card tray.

Heat up back glass panel.

Use hobby knife to open a gap and cut the fierce sticker underneath rear glass panel.

Remove back glass panel carefully.

Heat up bottom plastic panel.

Use hobby knife to open a gap and insert guitar picks to cut adhesive underneath.

Twist off 6 Phillips screws together.

Insert guitar picks and plastic opening tool to separate front assembly from back cover.

Unscrew one Phillips screw.

Remove metal bracket securing flex contactors.

Release 3 flex contactors and remove it .

Release battery contactor.

Use plastic card to cut strong adhesive underneath, then pry up and remove battery.

Here we can see the strong sticker underneath 3450 mAh battery.

Disconnect signal cable contactor and twist off one Phillips screw.

Remove daughterboard.

Cut adhesive underneath vibration motor, then remove vibrator.

Twist off one Phillips screw and remove loudspeaker.

Twist off 2 Phillips screws.

Remove metal bracket securing front camera contactor and audio jack contactor,

Remove front camera.

Remove audio jack.

Twist off 3 Phillips screws.

Take away metal bracket securing LCD flex contactor.

Release LCD flex connector.

Remove signal cable.

Pry up and remove motherboard.

Remove fingerprint scanner.

Remove rear camera.

Here is the motherboard.

Remove earpiece.

The sticker underneath LCD with digitizer is a little bit strong, so use heat gun to soften it for a few minutes.

With the help of suction cup, plastic opening tool and guitar picks, remove LCD assembly carefully.

Done.