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- [Instructor] And part four

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of the mobile device troubleshooting.

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Non-responsive systems could
be caused by several things

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including extremely short battery life.

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Well, if the battery was damaged

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or it's shelf life has pretty much expired

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or it won't hold a charge,

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well, then the system's
gonna become non-responsive.

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It's gonna be slow

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and the battery won't last very long

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for you to even work with it.

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So generally, a new battery is necessary,

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but it could be also that you
have applications on there

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that are using a lot of power

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or it could be that lack
of airflow to the battery

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and it could be a virus or malware.

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So you're gonna wanna check
your anti-malware software

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and see if it is running first of all

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and also see if it's updated.

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Overheating is a huge
problem with batteries.

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I don't know, I've heard
people say that their batteries

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overheat a ton of times,

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and this could be because
of bad applications,

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poorly written applications,

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the excessive use of applications

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where you have tons of applications

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running at the same time,

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excessive browsing where you
have 15, 20, 25 tabs open

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at the same time 'cause
that's easy to miss

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for the average user as well.

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Could be an old battery,
a damaged battery,

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lack of ventilation.

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There's a lot of possibilities for that.

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Always remember, avoid
draining the battery,

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especially below 50%.

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Try to conserve power. Use sleep mode.

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Keep your device away from heat sources.

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Turn off the mobile
device when not in use.

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Don't bang or throw the device.

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Use a good case around the device

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so that it doesn't overheat,
so you get that proper airflow.

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Clean your device every couple months.

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All these things can
help with overheating.

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Remove unnecessary applications

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and close applications
that you're not using

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and force close them if necessary.

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All these things can
attribute to overheating,

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so watch out for that.

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And you might see a frozen system as well.

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The frozen system is pretty much the worst

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because you can't do anything.

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You can't try to fix it.

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You can attempt to force
close applications.

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You can attempt to reboot the system

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and go into safe boot mode.

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You can attempt to do a
Control + Alt + Delete

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on your laptop and see if you
can get into the task manager

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and end the process or app
that is causing the problem,

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but sometimes none of that works

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and you have to just try
and restart the system

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and you might have to pull the power.

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You might have to pull the battery.

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So a frozen system could
be a big problem for you.

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Now, frozen systems will generally mean

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that the CPU was too overworked

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or the battery doesn't have enough power

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and it's running low on battery life

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and the CPU usage is way too high.

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And quite often, a frozen system

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is accompanied by overheating.

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So it's kind of an interesting
little phrase there.

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The frozen system usually happens

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when the mobile device is very hot

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and you'll feel it on
the back of the device.

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So the best thing is again you wanna try

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and kill off any applications
that aren't necessary

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and reboot the device, power cycle it.

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And if a regular reset doesn't work,

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you're gonna wanna consider a hard reset

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on the smartphone or on the tablet.

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Make sure your information
is all backed up.

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See if that fixes the problem for you.

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Now with Windows, you
get into frozen systems

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and it could be a lot of reasons

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and there could be files
that are corrupted.

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There could be issues
with the operating system.

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We get more into that in the 902 course,

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but it's the same type of thing.

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You wanna check the connections for power,

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check the battery and power
cycle the whole device

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and see if it happens again.

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And if it does,

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then you're gonna have
to troubleshoot further.

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You might have an issue with the CPU.

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The CPU might be overheating.

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You might have an issue with the fans.

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The fans might not be ventilating

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the heat out of the system properly

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or maybe the fan got disconnected
or maybe it just failed,

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so there's a lot of
possibilities with that.

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But generally, you wanna
keep your device maintenanced

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and you wanna try to verify

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that the battery is relatively new

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and you have cleaned up your applications

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and you've tried a reset.

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You've tried re-imaging the laptop

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or you've tried a hard reset
on the smartphone or tablet

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before you go any further

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and attempt sending the
laptop back to manufacturer

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or taking the mobile device to
an authorized repair center.

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Always check those things first.

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And so that's about it
for the troubleshooting

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for the mobile devices.