5.5 Troubleshooting Mobile Devices Flashcards
1
Q
Poor battery health
A
Causes:
- old battery
- bad reception = constantly searching for signal
- applications running in the background
Solutions:
- replace the battery
- airplane mode
- disable unnecessary features (802.11, Bluetooth, GPS)
- check battery usage in settings to see the possible causes
2
Q
Swollen battery
A
- build up of gas = fire hazard
- replace battery immediately
- dispose old battery at hazardous waste facility
3
Q
Broken screen
A
- back up device first
- replace the screen
- tape the broken screen until repaired
4
Q
Improper charging
A
- check the charging port for any dust or lint
- check the cable for any damage
- if charging is slow, check the power outlet with a multimeter
5
Q
Poor/no connectivity
A
- effected by location
Cellular - check signal strength
- connectivity may be slower indoors
Wi-Fi - interference can limit throughput
- change location of access point
- change the channel/frequency of the access point
6
Q
Liquid damage
A
- power down the phone immediately and do not charge
- take out any removable parts such as case, back cover, battery, etc.
- let the device dry out completely before turning back on or charging
- leave device in a dry location for at least a day
7
Q
Overheating
A
- phone will automatically shutdown to avoid overheating damage
Causes:
- charging
- apps that use a lot of CPU
- display light
8
Q
Digitizer issues
A
- restart phone (hold down power and volume button)
9
Q
Physically damage ports
A
- check for any damage to the charging interface or the pins
- not modular = requires replacement of the motherboard
10
Q
Malware
A
- use a third party security/antivirus app
Look for symptoms:
- unusual apps
- large data transfers
- pop up messages
- high CPU usage
- excessive battery use
11
Q
Cursor drift/touch calibration
A
- restart phone
- use touch calibration
