iPhone 6 Power Button Connector (FPC) Replacement

This is an iPhone 6 that came in. The person who owns it actually worked on
it and had done some water damage recovery. So the phone does everything it’s supposed
to now except that the lock button does not work so we can power it up. I’m just gonna get a test screen here. And plug this in and you’ll see that if we
connect the battery and get the power button cable plugged in plug in the battery down
here and then if we hit the power button we have nothing. However, if we plug it into a power source
we get an Apple. So it’s starting to boot up. So the person who sent this said they tried
a number of different power button cables and they’re not working. I’m gonna go ahead and plug one more in just
to test it and confirm that that’s the problem but normally I’d just take his word for it
but I have a cable here that I’m gonna plug in and double check that. And I have a feeling that I’m gonna get the
same response. So in the mean time I’m gonna get this under
the microscope, or afterwards I should say and see if the little pin there that we can
short to turn the phone on is going to work or not. If we disconnect this cable we should be able
to short a couple of pins on here with the battery connected and get the screen to fire
up. So pretty much lets zoom in here and we’ll
get real close. You’ll see there’s does appear to be some
corrosion here. And if we touch these two… oh. That doesn’t look good. I don’t know if, hopefully you can see that. Are we zoomed in all the way? Okay so this right here you can see if I touch
this pin this whole thing right here is moving. That’s not even connected. So I’m gonna start with my donor board here
I didn’t have an extra connector on and but I did have a healthy looking one on another
iPhone 6 that does not work. In fact I’ve pulled quite a few parts of off
it already so I’m gonna go ahead and just put some flux down here and I could have mixed
in some leaded solder but I was really a little more interested to see how difficult it was
gonna be to get this off as is. So here you can see I’m gonna go and wick
away some of the existing solder but again I didn’t add anything to this. And I found that this came off pretty easily
because you’ve got quite a bit of surface area you can access here as opposed to when
you’re working on very small components in very tight spaces. So I have a pretty decent sized tip on my
iron at this point. I didn’t really find that it was difficult. to get the old solder off so right here I
just kind of flipped it around and we’ll get some flux here and do the same thing. And it looks like I might have touched the
plastic in fact I did on the other side there just a hair. So no damage to the connections of course
but I did heat it up a little bit in that one spot. Got a little too close. And the anchors here on the corners took a
little more heat a little more time to clean up. All right so what we’re gonna do now is just
come in with some hot air and you’ll see I’ve got my tweezers kind of at the ready I’m just
gonna slide this over to the side as soon as I see the solder liquify which did not
take very long. Just a few seconds and that came off clean. And now we have a usable connector that we
can put on our board that needs help. Now this is the phone that’s being repaired. You can see I’ve cleaned up around, all around
the connector for the most part so you can kind of see where that corrosion was. But the main thing here of course is we’re
concerned about the board. I don’t care if this connector gets destroyed
in the process but what we want to make sure of is that we don’t float off any of those
pads. Otherwise we just create some additional work. Now I am gonna add some leaded solder here
because again I’m very concerned about those connections on the board. I want to make sure that those don’t get damage
while I take this off. So this should make the job a little easier. Safer is probably the word I was looking for
there. All right we’ll flip it around and clean up
the other side. And we should be ready to go here. Now if you watch this is not the way that
you wanna pick up a connector that you plan on using again because if you squeeze even
a hair here in the middle as soon as this thing heats up you’ll see it just starts to
warp. So fortunately this is our broken connector
and that’s gonna end up going in the trash. And then we need to take a look down in here
and you’ll see what the problem was. That thing had tons of corrosion in between
the pad and the footing that had broken away from it and it’s interesting because I had
another I had a tablet actually I was working on recently and it looked just the same so
once that moisture gets trapped under there as you can see all the rice in the world is
not going to help you because we have a physically broken connection and we have corrosion taking
place under there which over time can get really bad and probably get to the point where
there’s no way that you can use that particular spot again. I don’t think that trying to replace these
pads is a realistic approach to this kind of repair but here you can see as I’m scraping
it the good news is that there is actually a pad under there and that debris is starting
to come off and through a process of adding flux and heat, soldering, going back and wicking
it away and cleaning it up eventually Idid get this thing to look health enough to where
it would hold some solder and this was the problem I was running into in the beginning
is nothing really wanted to stick to it because there was so much oxidation on there and that’s
big problem when you’r trying to get things to bond. So again I’m going in with the solder and
adding it on there and cleaning it up. All right so we’re starting to see the pad
reveal itself. And this is a look at the old connector that
came off. So you can see not only was the corrosion
on the board but it’s on the connector itself. I might be able to go in there and scrape
that clean but this things already warped, melted, and we have something to replace it
with anyway so that’s going in the trash. And what happened here was i actually turned
off the camera for a minute so I wanted to kind of redo this section. Just go in with some flux, get some leaded
solder, and put uhhh get all these pads coated so they’re ready for that connector to go
on. And as you can see now everything’s sticking
the way it’s supposed to. So that’s all prepped and ready to go. Next thing is the fun part and I won’t make
you watch the entire process but for me, getting these things centered is always tricky and
it’s particularly challenging when you’re right handed ad you’ve got your hot air on
your right hand which I usually do and trying to steady things with your left hand. It is not the ideal setup. I need to move my stuff around a bit. Alright so that’s pretty much lined up. I’m gonna go and hit this with the heat and
if I didn’t mention earlier I was at 365 and I had my air flow all the way down to 30 and
it still didn’t take very long at a pretty close distance. It was probably an inch or so or a couple
inches away I guess. And that thing sat real fast. It’s aligned almost identical to the way it
was from the factory. So now I’m just gonna go back here and touch
these up with the iron. Make sure we have a good solid connection
on both sides. Alright so let’s go ahead and get the board
back inside the housing. I skipped that part because I’m assuming you
already know how to assemble this phone. If you don’t you probably won’t be soldering
on the inside of it. So I’ve got everything kind of in place here. We’ll go ahead and connect the display. The battery. And the moment of truth. And we have a working power button. And that is just about it for this video. So of course what I’m gonna do now is pull
the board out and I will put that upper area in the ultrasonic cleaner so that we make
sure that there is no residual flux or debris or anything else that might have been exposed
to moisture on there and I will dry it thoroughly and get the phone put back together and then
find out when it fires up that it has a pass code. So I’m gonna have to contact the person who
owns the phoneif they want me to do anymore testing but for the most part we should be
good to go. If you found the video helpful like it, share
it, check out my channel for more tutorials and product reviews, and most of all remember
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section and thanks for watching.

3 thoughts on “iPhone 6 Power Button Connector (FPC) Replacement

  1. I knew you fixed it from when we talked earlier, but I have to tell you Mike, when I saw it come on with the power button, It was like the Vancouver Canucks won the Stanley Cup in OT and I was the one who scored the goal!!!!

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