Troubleshooting Mobile Devices Flashcards
OBJ 5.5: Given a scenario, troubleshoot common issues with mobile devices
What are common mobile power issues?
- Poor battery health
- Charging issues
- Swollen batteries
What causes swollen batteries?
Overcharging
What happens to battery capacity as batteries age?
The maximum charge they can hold decreases
What type of damage can overheating cause in mobile devices?
Overheating damage
What are the steps to take if a mobile device has liquid damage?
- Dry off excess liquid
- Power off the device
- Disassemble the device
- Clean the circuit boards and contacts
- Replace the battery
How can you fix physical port damage in a mobile device?
Remove the port and replace it
What components are affected when a mobile display has broken screens?
- Glass
- Digitizer
- Screen
- Backlight
What causes dim images on a mobile display?
- Backlight
- Inverter
What is the role of the digitizer in a mobile device?
The device underneath the glass that responds to the input of the user
What can cause digitizer issues?
Shock damage from dropping or liquid damage
What should be checked when troubleshooting calibration issues?
Touch pad sensitivity and observe the user
What physical issues can affect mobile connectivity?
- Connected to the right SSID
- Connected using the right password
- Move closer to the wireless access point
- Put the higher gain antenna on
- Operate 30 to 50 meters away from the wireless access point to maintain a good connection
What software configuration issues can impact mobile connectivity?
- Bluetooth enabled
- Properly paired
- Adequate battery
- Right range
What is the maximum range of Bluetooth as a personal area network?
Up to 10 meters
What are signs of mobile malware infections?
- Excessive power drain
- Significant data transmission
- Camera and microphone usage
- Asking for additional permissions
What steps should be taken if a mobile device is infected with malware?
- Back up the data
- Format the device and re-install the base operating system
