39 Questions
What happens to the battery capacity of mobile devices over time?
It degrades with each recharge
How does going outside the range of your provider's network affect your phone's battery?
It drains the battery by constantly trying to reconnect
What is suggested as the best fix for a mobile device with a degraded battery?
Replacing the battery
What is one consequence of staying outside the signal range for your provider?
More battery consumption due to constant reconnection attempts
How does enabling airplane mode help save battery life?
By disabling radio connections
What effect does frequent recharging have on a mobile device's battery?
It reduces the battery's capacity over time
What is a common challenge when it comes to repairing a system board?
Replacing the entire system board
How can you identify a potential malware infection on your device?
Noticing high CPU usage
What can be a sign of cursor drift on a device?
Unexpected movements when the device is untouched
Why is it recommended to run a third-party virus scanner on your device?
To identify malware or unusual software
What is a common symptom of malware infection on a mobile device?
Pop-up messages appearing frequently
How can you resolve cursor drift issues on your device?
Use the calibration app to recalibrate the screen
What happens when you enable airplane mode on your mobile device?
Cellular phone capability is disabled and Bluetooth, GPS radios are also disabled
What should you do if your mobile device has a swollen battery?
Dispose of the older and faulty battery at a hazardous waste facility
Why should you avoid touching broken glass on a mobile device?
To prevent further injury from sharp glass fragments
What risk is associated with trying to fix broken glass on the front of a mobile device?
Risk of damaging the display underneath
What should you do if your charger doesn't charge your mobile device properly?
Check for dirt and lint in the charging cable interface, clean it carefully without disturbing the pins
Why is it important to perform a backup when the screen of a mobile device is broken?
To ensure data safety since other damage may have occurred
What should you do if your mobile device has a failing battery?
Replace the battery with a known good battery as soon as possible
Why should you avoid disturbing or damaging the pins associated with the charging cable connector?
To maintain proper connectivity for charging functionality
What should you do if your mobile device's battery becomes swollen?
Dispose of this older and faulty battery at a hazardous waste facility.
What can happen if you have a swollen battery in your mobile device?
The entire top portion of your phone can come off.
What should you do if your mobile device gets very wet?
Wait for it to dry completely before attempting to power it on
What does the text recommend if your phone gets too warm?
Let the sensors handle it and turn off automatically
How can you identify which app is causing overheating on your device?
Using app usage utilities on your phone or tablet
What is the recommended action if your mobile device's screen is completely black and unresponsive?
Immediately perform a hard reset
What should you avoid if you want to prevent damage to your phone or tablet?
Putting the device in direct sunlight
How can you perform a hard reset on an Apple device with a black screen?
Hold down the Power button and Home or Volume button simultaneously
What should you do if your mobile device's interface becomes damaged?
Check for any bent pins or damage inside the interface
How can you reset an Android device with a removable battery?
Pop out the battery, put it back in, and restart the phone
What should you do if an app is causing excessive heat on your mobile device?
Use app usage utilities to identify the app and consider temporarily disabling it
What is recommended if you drop electronic device in water?
wait for it dry completely before attempting to power it on.
What should you do if your mobile device is taking a long time to charge?
Check if the wall outlet is functioning correctly
Why is it important to check the voltage from the connector plugging into your mobile device?
To guarantee the right voltage for charging
What can affect signal strength on both cellular and Wi-Fi networks?
The location of the user
What should you do if your mobile device comes in contact with water?
Do nothing and let it dry completely before applying any power
What purpose do liquid contact indicators (LCIs) serve inside mobile devices?
To detect water damage for warranty purposes
Why are silica gel packs recommended over rice for drying out wet mobile devices?
Silica gel packs are better at removing moisture quickly
How can interference on a Wi-Fi network due to other access points be addressed?
Change the channel or frequencies used by your access point
Study Notes
- Mobile devices rely on batteries to function when not connected to a power source, but battery capacity decreases over time with each charge.
- To save battery life, be aware of device reception and enable airplane mode when outside of signal range.
- Airplane mode disables cellular, Wi-Fi, Bluetooth, and GPS radios, saving battery life on mobile devices.
- Check battery usage on mobile devices under settings to identify high-consuming applications.
- Batteries may swell over time and should be replaced if damaged or showing signs of swelling.
- Mobile device screens are commonly made of glass, and broken screens require replacement of the entire display.
- When charging a mobile device, check for dirt or damage to the charging interface and cable, ensuring they are functioning properly.
- Liquid damage is not covered under device warranties, and liquid contact indicators turn color when in contact with liquid, indicating potential damage.
- Water-damaged devices should be powered down immediately, disassembled, and left to dry in a dry area before attempting to power on.
- Devices should be kept away from water and extreme heat, as both can cause damage.
- Mobile devices have sensors that monitor temperature and automatically shut down if they get too hot to prevent damage.
Learn about troubleshooting techniques for mobile devices that are slow to charge, including checking the quality of the charging cable and testing voltage levels with a multimeter. Ensure the right voltage is reaching your device for efficient charging.
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