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LG G4 Tear Down, Screen fix, Phone repair video

December 24, 2019


In this video I’m going to show you how
to take apart and fix a couple things on the LG G4, one of LG’s newest smart phones coming
out in 2015. This one has the leather back with the center stitching. Go ahead and turn
off the phone first. Remove the back cover. Pop out the battery. And then you’re left
with 11 screws to take off from the back housing. And then I found that it’s easier to grab
along the center of the battery hole and the edge of the phone to start pulling away that
back plastic plate. You can just unsnap it from the edge of the phone and the whole thing
will just come lose once all those screws are out. Pretty straight forward. This phone
is actually pretty darn easy to take apart; nothing is glued down or adhesived like the
Galaxy S6. You can see these little gold contact pads that just kind of rest on top of the
motherboard. That’s how the power buttons and volume buttons communicate with the motherboard.
The bottom part of the bracket also snaps off. This is how you replace the loud speaker.
You can see the loud speaker segment in this bottom section and the gold contact place
that just sit on top of the motherboard. LG’s a big fan of those; they always have been.
Here is the buttons, the volume buttons and the camera lens. Pretty straight forward and
easy to replace. If your camera lens gets scratched or broken it’s pretty easy to
pop out and pop in a new one which is nice considering that the camera lens is easy to
scratch. Here are the buttons ribbon cables. You can just pop those out and replace them
with a new one if needed. The ribbon cable for the screen just snaps up like a little
Lego piece off of the main board. Be careful with any connections or chips down around
on the main board, you don’t want to pry up on those when you’re lifting up on the
ribbon cable connections. The motherboard just pulls away from the plastic frame of
the screen. And you can see here the contact points I was talking about earlier. Here’s
the SIM card slot (that is not replaceable), battery connections, and the charging port
(not replaceable either). You can see the back here as well. You might be able to do
it if you had some micro soldering tools but that’s beyond the scope of a normal person’s
capabilities so we’re going to skip over that. Here is the front facing camera and
the vibrator motor which is pretty small in my opinion. Usually with phones and even watches
they are a lot bigger than that. Here is the rear facing camera. 16 megapixels. Capable
of recording in 4K. It also has the image stabilization chips that you can see on the
side of it. Here is the earpiece. I’m going to lift off the little ribbon cable first;
it has some more of those contact points we were talking about earlier. And something
else I found interesting is there are these little contact points on the side of the motherboard
that just clip in next to the headphone jack. And that’s how the headphone jack communicates
with the motherboard. So here’s the screen. It’s a combination of the glass, digitizer,
LCD and plastic frame. If you are going to replace the screen you have two options: one
is to just buy the glass and LCD combo, or buy it with the frame, which usually ends
up costing 10 or 15 more dollars but will save you hours of work and frustration. So
if you’re going to do a screen repair make sure you buy the screen with the frame included.
You will thank me later. Put back in all the components. Got the vibrator motor, the rear
camera, the front facing camera and ear piece all placed back in; making sure that it lines
up with the little pins on the side. And then when you’re placing the motherboard back
into place make sure you lift up the ribbon cables of the cameras so they don’t get
caught underneath the motherboard. There’s only three to worry about so it’s not too
bad. And make sure the motherboard slips inside of the plastic clasps at the top and the bottom.
Just kind of press it in. You’ll hear it click into place to make sure that the motherboard
is secure. Putting the button back together. I put the center button down first, just kind
of eye balling it, and then the top layer just clips down over the top of it. And then
press it a couple times to make sure that everything’s clicking and you don’t have
anything stuck underneath there and it’s all cleaned out. And try not to touch the
inside of the camera lens either if you go to replace that. That will make it so that
your pictures are blurry later on. I’m going to clip the back frame back together. The
loud speaker is connecting to the rest of the device. Making sure that the ribbon cable
for the screen is clamped down to the motherboard. It’s kind of like a little tiny tiny Lego
piece. It has a bunch of little fins that just clamp down onto the motherboard. So you
have to line it up perfectly and then just clip it down. And you’ll feel it snap underneath
your fingers as it clicks into place. Getting the back housing pressed into the frame of
the screen. Getting the battery back in there. And then I’m going to test it before I put
the screws back in. Now the back cover’s in place. I’m going to go ahead and give
the phone a try…and everything works. If you have any questions leave them down in
the comments below. Don’t forget to “like” if this video helped you. And don’t forget
to subscribe. Thanks a ton for watching. Hope to see you around.

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