LG G4 LCD and Digitizer Replacement

Geschrieben von: Richard Suovanen

Kommentare: 11

Schwierigkeitsgrad

Moderate

Schritte

Zeitaufwand

40 Minuten

Einleitung

This guide will instruct you on how to replace a cracked or damaged LCD screen and digitizer assembly in your LG G4 smartphone.

It may be necessary to use a pre-cut LG G4 adhesive strip or Tesa 61395 tape to secure your new screen to your device.

Werkzeuge

Ersatzteile

LG G4 Screen

Schritt 1

Make sure the phone is powered off.
Remove the rear cover by placing the plastic opening tool in the groove on the bottom left side of the LG G4 and gently prying up.

Schritt 2

Place the plastic opening tool at the bottom edge of the battery and lift up. Carefully remove battery with your hands.

Schritt 3

Remove the eleven 3.9 mm Phillips #00 screws found at the back of the phone.

Schritt 4

Once all the screws have been removed, place the plastic opening tool in the lower left corner and firmly lift the cover up.
Detach the cover with your fingers

Schritt 5

Remove the following four press-fit connectors with the flat edge of a plastic spudger or opening tool:
Front-facing camera connector.
Rear-facing camera connector.
Digitizer connector.
The rear-facing camera may be held down to the frame with two sided tape. Try to move the camera with the spudger prior to lifting the motherboard If it does not budge, use the same tool to pry it from the frame to avoid damaging the connector cable in the next step.

There is a ribbon on the left of the camera. Use spudger to lift this so that the camera is left behind. Do not fiddle with the rear facing camera.

befetti - 19/11/16

I second that! Just unsnap the camera connector like the other two. Unsticking the camera instead is silly, when that is so much simpler. Please update this to mark the third connector to be unsnapped.

Eric Schwarzenbach - 01/12/16

I lifted the ribbon but I can't get it to stick back down!

Jeff Elliotson - 11/12/17

I tried lifting the ribbon but it didn't unsnap… it actually felt like it ripped off. I couldn't get it to “snap” back down like the other ones.

Jeff Elliotson - 11/12/17

Schritt 6

Remove the motherboard by lifting it up using the plastic opening tool and your fingers .

My LG G4 has stopped working. Was told it needs board replacement. How do I get the motherboard. I reside in Nigeria.

Niyi Adedokun - 12/03/19

I realize this is over a year old, but for anyone else’s future reference you can find replacement boards on ebay. There is even a seller with brand new 700’s serial number boards (AKA the last batches available after the bootloop recalls). I think the name is “gsmplaza” IIRC; they’re based in Israel and are the only sellers selling BRAND NEW boards, not refurbished or used, so it shouldn’t be hard to find.

Lotus Flower - 30/06/20

Schritt 7

Use a heat gun or iOpener over the auxiliary port to soften the adhesive that secures it to the plastic housing.

I found this to be unnecessary. Mine came out easily when I shoved a small screwdriver all the way to the back and gently pulled upwards. Mine may have been loose from lots of use though.

Joshua Wesalo - 20/11/19

Schritt 8

Insert a nylon spudger into the auxiliary port and gently pry upward to free the port.

Schritt 9

You may also need to remove the vibration motor (the small circular component with two gold contacts), ear-speaker, and two rubber covers on either side of the ear-speaker to transfer these over to the new display assembly.
Use a spudger to carefully remove these components and then place them in the new display assembly..

Schritt 10

Use a pair of tweezers to remove the adhesive strip that secures the digitizer ribbon cable.

Schritt 11

Insert the flat side of a nylon spudger below the digitizer ribbon cable to free it from the adhesive.
You may use your fingers to pull the ribbon cable gently as you free the panel from the adhesive with the spudger. It may be necessary to apply more heat if the adhesive is still too strong.

Schritt 12

Use a heat gun or an iOpener to soften the adhesive underneath the edges of the screen.

Schritt 13

Use a heavy duty suction cup and firmly pull the screen away from the frame to create a small gap.
There is a very thin strip of adhesive that holds the screen to the frame; this step should not require excessive force. Apply additional heat along the edges of the phone if the screen is difficult to free.

Schritt 14

Insert a plastic opening pick into the gap between the screen and the plastic housing.
Slide the plastic opening pick along the border of the screen to break any additional adhesive and free the screen assembly.

Schritt 15

Remove the LCD screen & digitizer assembly.
Feed the digitizer ribbon cable gently through the frame.

It is possible replace the digitalizer only?

Nene indy - 15/08/17

Abschluss

To reassemble your device, follow these instructions in reverse order.

Tinte & Feder

Richard Suovanen

Mitglied seit: 07/02/17

27640 Reputation

3 Kommentare

It is possible replace the digitalizer only? Thanks

Nene indy - 15/08/17

Per the LG G4 Teardown guide, the glass, digitizer, and LCD are all fused together, so you have to replace the whole assembly

Eric Clothier - 21/09/17

Lorsqu’on remplace l’ensemble écran + LCD achetés ensemble et que l’on transfère les pièces de l’ancien cadre (caméra, vibreur…), il ne faut pas oublier de transférer également 3 petits caoutchoucs carrés noir ou gris (2 en haut de chaque coté du haut parleur, et 1 en bas à gauche de la prise jack), sinon le détecteur de proximité ne marche pas et l’écran s’éteint et le reste lorsqu’on téléphone…

Nevile - 17/04/19