31 Questions
What happens to the capacity of a battery each time it is recharged?
It degrades
Why does a mobile phone constantly trying to reconnect to a signal drain the battery?
It leads to faster battery degradation
What action can help save battery life when outside the signal range for your provider?
Enabling airplane mode
How can you minimize battery use even on systems with a brand new battery?
Be aware of the reception for your device
What is a common symptom of a mobile device infected by malware?
Unusual applications not installed by the user
What should you check for if you suspect your mobile device may be infected by malware?
Faster data transfer rate
How can cursor drift be prevented on older technologies?
Touching different places on the screen to recalibrate
What is a potential indication of malware on a mobile device?
Unusual pop-up messages
What can be a consequence of an infected mobile device running a process constantly?
Continued battery depletion
What is a challenge commonly faced with all devices, mobile or otherwise?
Threat of malware and malicious applications
What is a potential indicator of cursor drift on a device?
Cursor moving without touch input
What should you do if there are no obvious malware symptoms on your mobile device?
Run a third-party antivirus scan
What is the purpose of liquid contact indicators (LCIs) installed in devices by phone manufacturers?
To detect liquid contact
What is the recommended action if a phone or tablet gets wet?
Immediately power down and remove components
Which is a better option for drying out a wet phone according to the text?
Silica gel packs
What is the recommended action to recover a wet device according to the text?
Let it completely dry out in a very dry area without turning it on, charging it, or connecting it to any power source
What can damage mobile devices according to the text?
Heat
How can one identify apps causing excessive heat in mobile devices according to the text?
Use app usage utilities
What is recommended to avoid in order to prevent rapid heating up of a phone or tablet?
Avoid direct sunlight
What should be done if a phone or tablet screen is unresponsive according to the text?
Perform a soft reset or hard reset depending on the device
What may require replacement if damaged according to the text?
Charging interfaces or data transfer functions
What does airplane mode do on a mobile device?
Disables cellular, Wi-Fi, Bluetooth, and GPS radios to save battery
What type of batteries are commonly used in mobile phones and tablets?
Rechargeable lithium-ion batteries
What should be done if a mobile device battery becomes swollen?
Replace with a new battery and dispose of old one at a hazardous waste facility
What material are screens on mobile devices commonly made of?
Glass
What is the recommended action for cracked glass on a mobile device?
Cover with tape for safe use and backup
What can cause charging issues on mobile devices?
Dirty connectors, damaged cables, or insufficient voltage
What factor significantly affects signal strength on mobile networks?
Location, with cellular networks providing larger coverage areas than Wi-Fi networks
What can negatively impact the performance of Wi-Fi networks?
Interference from other Wi-Fi networks or devices on the same frequency
What is a common cause of mobile device damage that is not covered under warranty?
Liquid damage
What should be done with liquid-damaged mobile devices?
Take the device to a repair professional
Study Notes
- Airplane mode disables cellular, Wi-Fi, Bluetooth, and GPS radios to save battery.
- Mobile phone and tablet batteries are flat, rechargeable lithium-ion batteries that can swell if faulty.
- Swollen batteries should not be opened or punctured, replace with a new battery and dispose of old one at a hazardous waste facility.
- Screens on mobile devices are commonly made of glass, which can break and require replacement of the entire display.
- Cracked glass should be covered with tape for safe use and backup.
- Charging issues can arise from dirty connectors, damaged cables, or insufficient voltage.
- Signal strength on mobile networks varies significantly depending on location, with cellular networks providing larger coverage areas than Wi-Fi networks.
- Interference from other Wi-Fi networks or devices on the same frequency can negatively impact performance.
- Liquid damage is a common cause of mobile device damage, and it's not covered under the warranty.
Test your knowledge on liquid contact indicators (LCIs) in mobile devices and the recommended actions if your device comes in contact with liquid.
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