5.5 - Troubleshooting Mobile Devices Flashcards
Why does the battery capacity of mobile devices degrade over time?
Each time you recharge the battery, you lose a little more capacity. After years of recharging, the battery doesn’t hold the same capacity as it once did.
What can you do to minimize battery use when outside of your provider’s network range?
Enable airplane mode to disable the radios in your device, stopping it from constantly trying to reconnect to a signal.
What does airplane mode do to your mobile device?
It disables cellular phone capability, 802.11 networking, Bluetooth, and GPS radios, saving battery life.
Where can you check which applications are using the most battery on iOS and Android devices?
Under Settings and Battery.
What should you do if you notice your battery is swollen?
Stop using the device immediately, replace the battery with a known good one, and dispose of the faulty battery at a hazardous waste facility.
What can happen if a swollen battery is not replaced?
It may damage the device, as seen when a phone’s top comes off due to a swollen battery.
Why is it difficult to repair broken glass on mobile devices?
The glass is often physically connected to the display, so replacing the entire display is necessary.
What should you do if the glass on your mobile device is broken?
Be careful of sharp edges, and consider using clear tape over broken glass to avoid cuts while performing a backup.
What troubleshooting steps should you take if your mobile phone charges very slowly or not at all?
Check the charging interface for dirt, inspect the cable for damage, and ensure the cable is operational. You may also measure voltage from the wall outlet and connector with a multimeter.
How can signal strength vary on cellular and Wi-Fi networks?
Signal strength depends on your location. Cellular networks cover large areas, while Wi-Fi networks have limited ranges and can be affected by interference from other devices.
What should you do if your device gets water damage?
Power down the device immediately, remove all components, and use a desiccant like silica gel to dry out the device. Avoid turning it on or charging it until it is completely dry.
Why is putting a phone in a bag of rice not very effective for water damage?
Rice does not remove liquid efficiently; using desiccants like silica gel is more effective for drying out a device.
What should you avoid doing if your device is wet?
Do not turn it on, charge it, press keys, heat it, or move it around. Allow it to dry completely in a dry area.
What should you do if your device becomes too warm?
Devices have sensors that will turn them off to prevent damage. Avoid placing the device in direct sunlight and check for apps causing excessive heat.
What should you do if your mobile device screen is black and unresponsive?
Perform a reset. For Apple devices, hold down the Power and Home or Volume buttons. For Android devices, try removing and reinserting the battery or holding down Power and Volume buttons.
