- Remove the back cover. It comes off easily.
- Remove battery, SIM card.
- Don't forget the S Pen.
- Remove the 16 screws all together on the middle housing. That is a lot of screws.
- Cut the adhesive sticker between the screen and the middle housing. It will be easier if you apply low heat degree less than 85℃. Be careful to avoid breaking touch panel.
- Carefully flip the housing over and loosen the hidden tabs around the battery slot.
- Loosen the middle housing and then push the front assembly--this may take a little extra effort.
- Separate front assembly from middle housing successfully.
- The whole front assembly comes with motherboard, USB board, cameras, LCD screen and some other small components.
- The back housing comes with power & volume button, headphone jack and loudspeaker. And except loudspeaker, other parts are easy to remove.
- Get the flex free from the adhesive underneath and remove headphone jack naturally.
- Unlike the Galaxy S5, the Note 4 power and volume buttons are easy to remove.
- Cut the adhesive between LCD screen and mid plate carefully. Especially care about the position of the flex very much.
- The adhesive is in the red scale, it's strong and we had damaged the foil film on the back of the screen when cut the adhesive. Heat with a low degree will make easier.
- Release the connectors from motherboard. The right one is S Pen sensor film connector and the left one is LCD screen connector.
- You also can see the soft keys on the bottom side. So be careful when cut the adhesive, don't hurt that part.
- At last, remove LCD screen assembly carefully.
- Release navigation button flex connector ,get it free from the adhesive on the mid-plate and remove it.
- Remove 2 pcs of signal flexes. And maybe different versions Galaxy Note 4 comes with different numbers of signal flexes. Possibly one or two.
- Twist off two screws securing motherboard and USB board at first.
- Don't forget to release the earpiece speaker connector.
- Pry up the motherboard.
- Release USB charging board from motherboard.
- Finally, remove Galaxy Note 4 motherboard.
- By the way, remove rear camera from motherboard. Release the connector and can take the camera away easily.
- Now, it's the turn of front camera assembly.
- Release the connector at first, and then get free the two clasps, at last remove the front camera with sensors together.
- Get recent apps button and back button free from the adhesive on the mid plate.
- Pry up the USB charging board and remove it.
- Pry up and remove earpiece speaker.
- Vibrator comes with power button flex together.
- Remove volume button flex.
- Done.