LG V20 Vibration Motor Replacement

Geschrieben von: Dominik Schnabelrauch

Kommentare: 10

Schwierigkeitsgrad

Moderate

Schritte

Zeitaufwand

30 Minuten

Einleitung

Use this guide to replace the vibration motor in your LG V20.

Werkzeuge

Schritt 1

Press the button on the lower right side of the LG V20 to open the clamp that holds the back cover on the back side of the phone.
Remove the back cover.

Schritt 2

Before disassembling your phone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.
Insert a spudger or your fingernail under the battery at the small recess on the lower edge.
Be careful not to deform or puncture the battery.
Pry up and remove the battery.

Schritt 3

Remove the sixteen 4mm Phillips #00 screws attaching the back cover to the motherboard.

Schritt 4

The top and bottom frame section hold very tight to the mid frame. It is possible to pull them off with your hands. If you're not able to do so, use the following removal procedure:
Use the flat end of a spudger and apply pressure to one of the corners of the frame section until you create a small gap.

Schritt 5

Flip the phone and insert an opening pick in the gap you created.
Slide the opening pick along the gap until the frame section pops out of its plastic clamps.

People on Reddit are reporting that the V20's antennas are contained in this top piece, and removing it too forcefully can damage the 2G antenna's contacts, resulting in a loss of ability to make calls. Details and a suggested fix if this happens to you:

https://old.reddit.com/r/lgv20/comments/...

databasebloat -

Schritt 6

Remove the frame section.
Repeat this procedure with the frame section on the other end of the phone.
Within the top frame section there's a small silver grating that covers the speaker. This may fall out, so be careful not to lose it.

Schritt 7

The loudspeaker is attached to the cover of the motherboard. Use an opening pick to pry it up.

Be very careful with prying up the speaker or else it will break the connection to the cover.

Peter Halenbeck - 26/03/19

Schritt 8

The cover of the motherboard is held in its place by several plastic clamps.
Use an opening pick to pry up the motherboard cover at the right corner at the bottom of your phone until it pops out of the plastic clamp.

Bonjour, en placant le médiator à l’intérieur de l’emplacement de la batterie le démontage est plus facile de l’intérieur vers l’extérieur…

pat pat -

Merci pour l’info!

Nicolas Pierret -

Schritt 9

Slide the opening pick along the mid frame and flip it sideways to open the plastic clamps holding the motherboard cover in its place.

Schritt 10

Remove the motherboard cover.

Schritt 11

Use the flat end of a spudger to disconnect the front camera flex cable.
If you want to go on and remove the motherboard assembly, there is no need to remove the front facing camera after disconnecting it. However if you feel uncertain, carefully remove it with a pair of tweezers.
Use a pair of tweezers to carefully remove the front facing camera. Be careful to only grip the body of the camera, as the top is the sensor pcb and is only held on with glue (removal will ruin the sensor).

Schritt 12

Use the flat end of a spudger to disconnect the flex cable of the left rear camera.
The second rear camera will come out with the motherboard since it is connected on the other side.
You can leave the front facing camera in its place as long as you're careful while removing the motherboard assembly. However if you feel uncertain, carefully remove it with a pair of tweezers.

Anyone have a picture of the back of the board by the charge port

DANIEL HOCH - 22/03/18

Schritt 13

Disconnect the display flex cable with the flat end of a spudger.

Schritt 14

Use the pointed end of a spudger to lift up the motherboard assembly until you can get a good grip.
Carefully lift up the motherboard assembly and remove it.

Be very careful handling motherboard. The numerous spring-type contact points can be easily bent.

Peter Halenbeck - 26/03/19

Schritt 15

Use a pair of tweezers to remove the vibration motor.
If the vibration motor is glued in too tight, you can use an iOpener to loosen the adhesive beneath it and try again.

Does the adhesive holding the motor need to be replaced? What kind is needed?

databasebloat -

Hi databasebloat,

usually the adhesive can be reused. In case you want to replace it anyway, you can use thin double sided tape and cut it into small pieces or a shape similar to the old adhesive.

Dominik Schnabelrauch -

Abschluss

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

Tinte & Feder

Dominik Schnabelrauch

Mitglied seit: 23/11/16

167812 Reputation

2 Kommentare

When I dug down to the motor, I found it wasn’t going to be that easy to pull it out.

Instead, I checked that it actually worked by touching its contacts carefully to a 1.5v AA battery. It turns out that the spring contacts on the motor were a little too compressed, so I stretched them with tweezers, and didn’t need to replace the motor: all works.

Alexander Pruss - 14/09/19

my motor also stopped working. after taking it apart i noticed the gold contacts on the PCB were hardly rubbed. connected a 2.5 v PSU to the motor. works! also just ended up stretching the spring. Also added some NT-H1 thermal paste to the area with the thermal pad and the other can beside it. Thermal throttling was reduced significantly.

Marvin Mallari - 10/02/20