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- Okay, part two of mobile
device troubleshooting.

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Here are some more common
issues you might encounter.

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For example, the battery doesn't charge.

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Well, that's a problem.

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If the battery doesn't charge

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then you won't have long
to go before it dies out

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and you won't be able to use the device.

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Now, for the laptop,

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you wanna check and make sure

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the battery is connected properly.

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And you wanna check that
your power brick is connected

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to your DC in jack correctly.

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And, you know, check
that the power brick is,

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the connections are secure on both sides:

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the AC outlet, the power brick itself,

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and then the connection to the DC jack.

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And you wanna make sure that
you're using the correct

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battery charger for your laptop.

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Very important.

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Sometimes the DC in jack can
go bad, it can be damaged.

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And we showed how you can replace
that in a previous lesson,

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so you wanna check for that as well.

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Otherwise the battery
might be dead as well.

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Batteries for laptops,

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they usually have a shelf life
of about five to ten years,

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depending on the usage of the laptop.

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And on the mobile devices,

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your battery life is a lot less:

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it's usually two to five years.

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Less amount of time for smartphones and

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more for tablets but,

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the battery might not charge
on a smartphone or tablet

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because your charger
isn't working properly

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or it's the wrong charger.

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And again, the battery
could go bad over time.

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So, you wanna check that.

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Now, there's other options.

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There's, there's other possibilities,

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as far as the battery.

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You might have a swollen battery.

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When this happens, if you see it,

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you have to, you know,
remove it immediately.

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Put it in a Ziploc bag
and inside a cardboard box

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and recycle it as need be.

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Your municipality will
have regulations as far as

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how this is done.

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And there's a lot of
companies that are out there

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that will come to your organization

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and pick up these types
of swollen batteries

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or damaged batteries and just get them

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out of your business real quick.

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But the swollen battery could
happen because of over usage.

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It could be a very old battery.

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It could be because of temperature issues.

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You know, you, you might
be bringing the device

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from cold climates to
warm climates quite often.

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Temperature and humidity
changes could cause this.

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And especially damage to the battery:

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if you've dropped the
smartphone or the tablet,

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you could get a swollen battery.

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So, you wanna watch out for that.

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And that'll usually cause it to overheat

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or cause no power at all.

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So that no power, if you get
no power at all on the device,

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you gotta check the battery.

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You gotta check the connections.

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You gotta make sure that the
device is taking a charge.

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So we wanna watch for that amber light.

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You know, you might have
an amber light here,

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that says it's charging,

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which will turn green
when it has completed.

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Or you might have the amber
light here on the laptop.

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And if you see a red light,
that usually means an issue.

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Either, either there's a bad
charger or a bad battery.

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So, watch out for red lights.

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You shouldn't see those if
it's functioning properly.

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And again, always check the power button,

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the power connection.

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I actually,

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when I took apart this laptop

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in a previous sub lesson,

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I forgot to reconnect the power button.

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And I, I plugged it in
and it wasn't turning on.

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And I was like, "Oh,

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I thought I was pretty
careful with the device."

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I was like, "Well, gotta reopen it again."

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Which takes another five minutes

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'cause there's a million
screws and everything.

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But that power button was
disconnected, and I was like,

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"Wow, I can't believe I did that."

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And it, it happens.

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So, check the power
button, if you have to,

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if you get a no power issue.

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Let's say the number lock
indicator light is on

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or is causing issues with your system.

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You might have a num lock
light here or over here,

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and you're gonna wanna check
that because on some laptops,

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the num lock will cause these letters here

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to also act as numbers.

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And we talked about this.

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You may have to turn the num
lock off to get all letters.

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So, you wanna watch that
num lock indicator light.

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That's an issue sometimes
when people are typing,

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they're not getting the right
characters on the screen.

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And no sound from speakers:

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well, you wanna check if first of all,

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you wanna check if the sound is on.

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On the laptop here,

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you have your volume buttons
and your mute button.

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And you have your volume buttons here,

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volume down and volume
up on this smartphone.

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And you can change the volume
from within here as well.

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And don't forget, we said that
you have multiple volumes.

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You have your master volume on
most smartphones and tablets.

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But then if you tap on that,

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you have individual volumes
for different applications.

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And, you know, you might have
that for the laptop as well.

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You have your mixer.

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If you click on the sound
icon in the notification area,

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you have your mixer and your
different volumes for say,

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your browser and different
applications you're running,

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and for the system sounds as well.

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So you wanna check that stuff,

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see if it's muted on
the function keys here

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or within the operating system
in the notification area,

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or on screen in your settings area.

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Or just hit your volume
buttons here to find out.

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And then you can troubleshoot further.

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Maybe the sound device is
disabled in the device manager.

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Or possibly there's a loose
connection for the speakers

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inside the laptop.