Hey guys! How are you? Welcome
to this new video, I hope you are very well
on my side look
with a big smile, if you notice...
I'll move the light a little
every time I make a video I get very excited
it fills me with joy, I'm very happy when I'm recording videos
and I'm very happy because we are going to bring a very common repair
we'll try to give a detailed explanation
it's a very simple repair and
I hope you like it
What are we going to repair today?
Today we are going to do a transplant of
the flex where the Yogi and the proximity sensor are located
Now, some time ago I made a video
where I programmed a new one
I just programmed a new one with a new tool
but in this case, we have the original
so in this case we only get a generic one
of the same model
and this simply works
Why do we have to do the transplant? For this simple reason
when they sent me this phone, it just didn't work
because if we can notice, the flex
is broken
is literally bent and broken
so I had 2 options, first, to do the transplant
and secondly, to reconstruct these lines because there are many
because some go in one direction and some go in another direction
ok then
this was sent like this
they sent me the original flex, now
if you notice, this has no Yogi
"Where is it, Edgar?"
it turns out that I was sent this phone with a flex that had been used for transplantation
but the problem is that the flex
is from XS, this will never work
it needs one from iPhone X of the same model
so we're going to remove the pieces from the wrong flex
transplant them to the new one and this one simply
will be forgotten, ok then
What are we going to use for this?
Bring any preheater you have
you don't need a specific brand
I use this one, the CH5, I use it for
iPhone X
I use this one for these jobs
I turn it on and set it at 240°/250°
let's wait for it to heat
meanwhile let's move to the microscope and bring the original flex
sorry, this is the generic flex
it was bought so I could make the transplant
usually some colleagues change this as well
this is for the True Tone
I don't usually change it, I haven't had any problems
and this has
a
circuit, to say the least, but in theory the only thing that works is the proximity sensor
we have to remember that this component is unique
Why is this component unique?
Because this over here
we call it the infrared light sensor
or also known as Yogi
this sensor is a LED, if we
let's see... if we open it, remember, this one doesn't work
this from inside has a LED
that LED emits infrared light
to our face, so that the camera can tell if it is a face or not
so, this circuit, this component, this square, is unique
I can remove this and put it in other place
but we have to remember that this
doesn't work, they sent me this just
to do this job
so, let's put the preheater here
and we need to get in this case
two tweezers
with one tweezer we position it
and with the other we remove, we just have to wait for the preheater
to reach the temperature so we don't
suffer for a moment
Ok, I think the preheater is reaching it's point
so we just have to put it here
for a moment, not too long
and remove it as fast as we can
let's wait
normally this doesn't take long, but this is taking a while
if it takes too long
that's not good
ok, there
we just removed it
Done, it looks a little bent, I don't like that
but we leave it at this
Now I'm going to throw away this
and bring
the original flex, this is the most important
this was the one put in the wrong flex
Ok, look, this was easily removed
I'm going to keep this one very carefully
now turn off the preheater and
bring this in and examine that this is
quite good
I don't know, I don't like this flex
to be honest, this flex
is generic, it is generally more advisable for you to use an
original flex from another device
I'm not a big fan of
buying generic flexes
but we had no choice
so we're going to clean it with alcohol to remove the flux
let's leave it at that, I'm not going to pass the wick over it
I'm going to leave it like this
because it broke a little, let's see if it works, if don't then I have an original one
Ok, now, I'll bring
this
this is the original
and we're going to pass the wick over this one because we have to do reballing
so, let's bring a little holder here
Okay, we have it, now we are going to set the soldering iron to 200º
and pass some wick over
perfect
now apply some alcohol
there it is
so now
we take it and now
it's reballing time
What solder paste do I use? The 183°
the solder paste of 183° is what I use for this circuit
perfect
now I'll bring
the hot station at 300°
there
it dried up
and now I'm going to detail it
there, it's important that the plastic is intact
now I'm going to turn on the preheater again
and bring the circuit
sorry, I meant the flex, sometimes I misspeak, an apology for that
because sometimes
I get confused about what I am talking about
We are going to place it as centered as possible
There, now, what are we going to do?
Let's bring the preheater
let's put it like this
very comfortable for us, and now we have to
just put it here when it reaches the temperature
and that would be all, in a moment we'll see
I am not very calm
I don't feel comfortable about that flex, I hope it works
I don't know, I don't like how it looks
hopefully it will work, if it doesn't, then I have an original flex to use
I didn't like this one, this is a generic flex
ok, but
I have never transplanted it to a generic one, let's try it today
Let's move to the microscope
and now I just
I'll zoom this so you can see it
Ok then, what this should do is
move once I put it in
it moved there, I don't know if you saw it
ok, there
I didn't like it at all
let's do it again
ok there, I'm going to put it aside
I didn't like it, but let's try it
Now I'm going to try to
apply some
alcohol on the sides, to remove the excess of alcoho...
I meant flux, you see?
I say incoherent things
it is well soldered but the flex looks pretty bad
let's try it and see if it worked, if it doesn't I'll transplant it into an orignal, simple as that
so I'm going to put it here
there
now let's
put this
this and now let's turn on the phone
if it throws an error, that means it didn't work
if there's an error that means it didn't work
it's not welded properly
here I have the original flex
this was the one that didn't work, and this was the wrong flex
it didn't show any error, that's good
that's very good
I don't remember the password, give me a minute to look it up
I tried with 0000, but it was 1234
ok, now let's see if we can configure a Face ID
1234
Restore Face ID, Configure new Face ID, Start
error there
Face ID not available
well
I never liked this flex, to be honest.
let's turn it off and on again
here I have an original
it doesn't show error
but
I prefer to use the original
let's try again
1234, let me tell you
this should not give any error, if I put this
and press 1234
and here
this shouldn't give this error
okay
yep, nope
let's change the flex
I had my doubts at the start of this generic flex
I didn't like it at all
So, I have this one
let's take it off from here, this is original
100% original
from a phone that I have for parts
ok, there it is
so, let's go back
to the microscope to show you how it goes
this is an original, so how this goes?
we have to
put our tweezers like this
with the tweezers separate these
we have to separate them
now we have to put this on the preheater
so once again, let's turn on the preheater, remove this and move it to the other one
and then test it
Now we'll do this in fast motion so you don't get bored
3...2...1...
Ok then
now it's working
with an original flex from another phone worked
PERFEC-TLY
without
problems
Unlock please
there
let's configure a new Face ID
if we press Start
here we can see
it is working perfectly
Now it's working, I recommend you that
you saw we used a flex from some pieces store
I recommend that you try to get an original one
this is the original of the phone but it is broken
I had a phone that I bought for parts
and it had the original flex
I preferred to use an original flex to avoid these problems
this repair is called "Yogi Transplant"
if you see it, or "Ambient light sensor transplant"
this is done when the flex is damaged
Now, the repair I did a few days ago
where I used this box
and also used this tool
I did it because I didn't have the orignal
in this case I had the original, another flex, I just
transplanted the original component from here
to the other one and that solves the problem
without---
---problem
for the sake of redundancy
So guys, I hope you have learned this technique
it's very simple, the station
is set at 250°, that's the approximate temperature I used
remember you must always wait the preheater reach the temperature so we don't
leave the flex there for too long or it will get damaged
Leave in the comments what do you think about this video
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take care my friends, for me it's a big pleasure to come and greet you
and we'll see you
in the next video
Bye!
and I always have my remote here to turn off the camera
Bye!