Learn the uses of the tools in Mobile Repairing (English)

Welcome! In this video you will probably
be seeing a lot of tools kept in front of you. In the earlier video we learned
about each of these tools and got a little bit of understanding about what
each of these tools are. In this video we will try and understand how we can use
these tools. Now, very specifically how do we hold them, what are some of the
essential aspects that we need to keep in mind while we are using these tools.
So, first of all let’s look at this whole set of tools and this is called an aligner set and we learned about aligner in the previous video. An aligner is
like a screwdriver which is essentially used to open the screws used on.. in the
mobile phones. Now, there are different types of aligners with very different
heads and we will understand what each of those heads are and what types of
screws can be opened with what particular type of aligner. Apart from
the aligner set, we also will learn about tweezers. Now, tweezers are used to
hold micro components or small ICs. So, this is a very simple tool that is used
to hold very small components and it’s easy. You can hold it by fingers and
that’s where you use these tweezers. We have different types of tweezers.This is another type
of tweezer which can be used to reach difficult-to-reach positions when we are
working on PCBs and we are placing components on our mobile phones. Moving on… we also have something called as a
cutter. Now, this is a larger version of a cutter and typically for mobile
repairing we have a very small similar-looking tool it’s usually is
very small and that is a cutter that we normally use while we are repairing
mobile phones. Apart from these tools, we will also be using thinner and brushes
while doing mobile repairing. Now, there are again different types of brushes
that you can use. There are thin ones and there are thick ones. Whichever brush you intend to use
during mobile repairing- please ensure that the bristles are really soft, so
that it doesn’t impact the PCB or the mobile phone very badly. So it has to be
soft brush that..that can be used depending on where we need to use it. So,
primarily the brushes are used to clean dust or when we need to remove moisture
or we need to ensure that we need to clear off some dust we use the brush
along with the thinner. So this thinner comes in larger bottles, but you can put
them in smaller bottles and use them while you’re doing your mobile repairing
work. So, to remove moisture or dust you normally place the thinner on the
PCB and then you can use the brush to clean it and then use the hot air gun to
actually dry out that particular area thereby removing the dust and moisture.
Now let’s move ahead and understand which aligner needs to be used with what
particular type of screws. Now first of all let’s take the black one and if you
can look at it closely it is flat in in its shape you can see it very clearly.
This is a flat head aligner. Basically, this is used where the screw head is really
flat and as you can see it- it’s very clear. You can use it to open screws which have
a flat type head. Now as you can see on the screen this is a small flat type
head and we’re using a larger screw here just to ensure that you’re able to see
it clearly on the camera. However on a mobile phone this flat
screw would probably be very very small but this is the shape in which flat
screw head is and you need to use the flat aligner. Now flat head aligner to
actually open the screw or place the screw back. Now you must ensure that
whenever the screw needs to be open, you use the right kind of aligner no matter what
the situation is. Because if you use a different kind of aligner, the
screw head could be affected and it can create problems there. Now when you hold
the aligner, ensure that it fits in properly onto the screw head so that it
is able to easily take it out. Now we’ll see a few more screwdrivers or aligners
as we call it with very different heads. So let’s try and understand what these
other heads are. So this is the second type of aligner that you would normally
find. This is typically called a Phillips screwdriver. Phillips screwdriver is very
common this basically has it’s also called a four-way aligner because it has
four different bumps that you that actually fit into the screw head and you
can use this to open Phillips screws and this comes in different different
thicknesses. So the same four heads can be a little more thicker depending on the
screw head. So again you need to be very careful about that which Phillips
screwdriver you use for which type of screw head and as you can see this is a
Phillips screwdriver head and you would be able to exactly fit in this. And as
you said that are four sides to it and a Phillips aligner will actually fit in
really well across these four and you can hold it very tightly and you will be
able to open or tighten Phillips screw head using the Phillips aligner- the
four-way aligner. Apart from these, there are also a few other aligners. This is a..
these are the… these are six-way aligners. So just like the philips screw head has
four heads in it. The six-way aligners usually have typically six heads or six
directions in it. So the aligners fit in exactly into all those six heads
and you will be able to open it very easily are tighten it very easily with
the six-way aligners. And you can very clearly see that there
are different sides to it and it has a nice grip to it. So, on these kind of
screw heads we will use that six-way aligners. Again, these six-way aligners come
in very different thicknesses. So you need to be very careful on identifying
the right aligner before you place it on the screwhead. Incorrect aligners can as
I said earlier, spoil the screw head and can result in damaging the mobile
phone itself. Now let’s go ahead and try and understand how we use this on an
actual mobile phone and how we need to remove these screws on a mobile phone.
Now, mobile phones coming very different shapes and sizes so you will need to
find out which way you can open it. Some of them you need to push the lock using
your fingers or your nails and you can open it. Some of them you can slide down.
Some of them needs to be pressed hard to be opened. So identifying the right kind
of opening, you’ll be able to open the cover- the back cover of a mobile phone.
Now inside the mobile phone, you will need to identify the right kind of aligner to open the screws. You’ll probably be seeing four different screws on the
sides of the mobile phone. You need to ensure that you pick up the right
aligner and use it to open this screws. Now if you look at these screws closely,
you will be able to identify the type of screw that’s placed in it. Now for
example- here you can see a Phillips screw head there. So there is a four-way
screw placed inside. So you need to ensure that you pick up the right Phillips screwdriver or the aligner for
it. And remember! these are very very gentle… The process for open opening
these screws need to be very gentle. So you don’t press them too hard because it
could actually damage the PCB or the mobile phone itself. So you need to be
gentle while you are actually placing your aligners on them and when you are
opening those screws. But first.. first and foremost you need to
ensure that you pick up the right type of aligner. Here we’re going to try using
a four-way aligner here or Phillips aligner. Now, if you don’t identify it right and you
use an incorrect aligner it can spoil the screw head and you may never be able
to open the screw easily after that. So, we picked up a four-way aligner now-
the Phillips aligner. We’re going to place it there and try and slightly press it and
turn it around and you will be able to see how we are able to open the screw
very easily. So it’s a very simple process but you need to handle it gently-
not pressing too hard or force the aligner on top of the screw and you would
be able to see how easily your able to remove the screw from the mobile phone. I
will try and look at another mobile phone and see how we can open a screw on
this mobile phone. Now here, you’ll probably see a six-way aligner. You need to ensure
that you use a six-way aligner to open this screw. You cannot use a flat screw- flat aligner or a Phillips screw aligner if you use them they can spoil this screw head and you’ll never be able to remove the screw properly. Apart from these if
you use an incorrect aligner, it can even spoil the body of the mobile phone and
it can really have a bad impact on the mobile phone also. Now you must also remember as we earlier
said that you need to identify the right thickness of this six-way aligner that
fits in. Alright! So you could try and place some
of these aligners and check whether it is able to hold on tightly. If it is able to hold on tightly- then use that aligner to open the screw.If
something is not fitting in- don’t force fit it because as I said earlier
it could spoil the screw head and it can even damage the mobile phone. Now once you have the right fitment or the right aligner of the right thickness, it will
fit in very well and gently you will be able to open the screw from its position-
just as you’re seeing it on your screen. So even in the Heck’s or the six-way screw
aligners, the thicknesses differ and you need to ensure that you use the right
thickness while opening these screws. So for example- if you have a mobile phone
that’s come for repair it is always recommended that you don’t keep
it in your hand when you are unscrewing are working on it because your
hands could be unstable and that could result in the mobile slipping from your
hand. So it’s better that you place it on the table. A little while ago we kept it in
the hand and openned the screws just to ensure that they were able to capture it
on the camera. But when you’re working on actual mobile phones, please ensure that
the mobile phone is placed firmly on the table or the work area and place the
aligner right on top of the screws in a straight way. It should not be tilted,
because if it’s tilted your screws might not go in properly or they might get
stuck in very different directions. So ensure that you hold the aligner
straight to the screw and gently turn it for opening or tightening the screws. And
as you can see- very lightly if you place it and turn it around the screws will
automatically come out. Now remember when you..when you keep it in hand and do
it.. it’s.. it’s also possible that you might hurt yourself if the aligner
slips and therefore it’s a safety hazard. So whenever you need to work on mobile
phones always ensure that you place them on a firm area like a table or a work area
and only then try using the aligners to open these screws. Now one of the other
things that you must remember is you know- after you remove the screws you need to be careful on where
you place it.. you know if you place it randomly here or there you will have a
lot of stuff on your working table. You might even lose the screw and it might be
very difficult and that’s where we use something like this. So you keep a magnet.
We have used a speaker which has a heavy magnet at the back. So use that to
ensure that you are keeping the screws safely in a particular place. This
will ensure that you don’t lose the screws and you’re able to get back the
exact screw and put it back on your mobile phone after your task is
completed. Now let’s try and understand how we use the tweezers. Before we get to
the tweezers we need to also understand another important element which is the
thinner.We have seen the thinner in the previous video also, but it’s important.
Let’s try and revisit how thinners need to be used. Now here we have a PCB which
has a lot of dust or dirt in it. Now many times, PCBs will also have a lot of
moisture in it which could result in malfunctioning of the circuit and that
is where we use the thinner. So thinner usually comes in large boxes but we
usually put it out into smaller container so it’s very easy to use and
the flow is controlled and you don’t need to pour a lot of thinner on PCBs
because that could also spoil the PCB. And it’s also important that.. you know
the thinners are usually.. they are made of spirit or substances that can
evaporate. So you need to ensure that you place it in a sealed container at all
points of time so that you don’t waste any of this liquid. So whenever you need
to clean a PCB, just ensure that you use the smaller box. The bigger box can be
kept in a safer place. There’s also a safety requirement
because you know when you are going to be working with wires or hot items- it can create sparks and that
is why you need to ensure that you keep them safely and just keep a small bottle
of thinner with you that can be used to clean up the PCBs whenever you need. As
you can see, you pour the thinner on top of the PCB and then take the brush that
we showed you before and slightly brush it- very lightly. Now, you don’t need to press
it very hard and you need to ensure that you use a soft bristled brush so
that it doesn’t affect the PCB also negatively. And as you can see when you
brush it like this the board is very clean the dust and
dirt is completely removed. Even any moisture that is left out on the board
is completely cleared off thanks to the thinner. Now using this thinner you’ll be
able to clean up the board and you can see the specific components very clearly.
So wherever you think there’s a little bit of dust and you need to clean it up-
you can try clean it and then you need to wipe it off with a brush. Now, one of
the other things you must remember while using a thinner- always ensure that you
wait till the thinner dries out of the PCB completely before you actually try
out anything on the PCB or before you test the PCB. Otherwise what could happen
is- because this is a liquid substance it could even short the circuit which means
the circuit can be spoiled if the thinner is still there in the PCB and you’re
trying to work on the PCB. So ensure that it’s dried out completely. You can use a hot air gun for it. You’ll
probably see hot air gun in one of the other videos. You can use it to ensure
that you dry out whatever thinner is left out on the PCB and then only start
working on the PCB. Moving on… let’s try and understand how we need to use the
tweezers. Now as you can see on the PCB they are very very minute components
which you cannot hold with your fingers and that is where we need to use these
tweezes. The tweezers have very sharp edges which will help you hold the
resistance conductor, connector and each of these ICs or components. It is very
easy to hold them using the tweezers and that is when we use the
tweezers more often. Now while you’re placing these ICs or while you are
removing any of these components you can use different types of tweezers
depending on how convenient it is, depending on which position the
component is in- you can try and use different pieces. This is a pointed
tweezer, this is a bent tweezer. So different types of pieces are available
and you need to decide which tweezer is the right one for you to be able to
take these components out or to place these components back on a PCB. These are
just two types of tweezers- there are many different types of tweezers in different
shapes. Depending on the requirement you can try and use the
respective tweezers. Now whenever you need to hold these tweezers- always hold it
this way- similar to how you will hold a pen or pencil while you’re writing.
This will ensure that it’ll give you better stability and will ensure that
you’re able to take it out very easily. So just like you would use your hands for
writing- similarly hold the tweezers also in exactly the same way to ensure that
you’re able to work conveniently. Now holding it in other ways can actually
spoil the components and can also be harmful to yourself. And that is the
reason why you need to ensure that you hold them properly while you are using
them on PCBs. The same thing is applicable for aligners or any other
tools that you may use. You need to ensure that you hold them in the right
position and use them effectively on the PCBs. Another important tool that you
will be using in mobile repairing is a cutter. As this is a large size cutter
which is used in electrical work, but in mobile repairing we use something which
looks similar but of a smaller size. So using this you can actually do a lot of
jumper setting. Wherever jumper setting needs to be done you need to ensure that
we use this tool to cut the right amount of jumper. Now to cut this as you can see
rightly, you hold it on the wire and you just press it hard the way you see it on the screen and it’ll be able to cut out
exactly the length that you would require. Now while you’re cutting it out
need to ensure that you press it hard and cut it out. You don’t need to
necessarily drag it out pull it out- that’s not needed. A strong push and
it’ll be able to..a strong cut and it’ll be able to open or it’ll able to cut
out the required amount of wire. Apart from these you will also see a
magnifying glass in front of you. A magnifying glass is also an essential
tool. In one of the earlier videos you may have seen a magnifying lens that we
used to look at.. magnify the components there. Now, this is a smaller version of it.
So whenever you’re working on boards, the components are very small you may not be
able to see them with your naked eye and that is where you may need to magnify
them so that you’re able to identify these components very clearly. And that
is where we use the magnifying glass. So you place it on top and you will be able
to clearly- see each of those components and i’ll tell you what, where, which
component is placed and will help you ensure that you’re able to do a clean
job when you are repairing any kind of mobile
phones. This can also be used to find out where
soldering is not proper, where there is dust or humidity or any of that can be
very clearly seen through this magnifying glass. And you will be able to
pick up those problems and solve those problems in the area of mobile repairing.
So as you saw in this video- we learned how we need to use.. what aligners are, what
are different types of aligners, how we need to use those aligners. We also saw a
little more about how we need to use the tweezers when you are removing or
placing components on a mobile PCB. We also understood how we need to use the
thinner to clean up the dust and humidity on the PCBs. We also saw a little
bit about how we can cut out wires, specifically when you need to do jumper
settings. So those are some essential aspects that you need to know as you
keep going and learning in the mobile repairing course. Keep learning. Thank you very much.

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