5.5 Troubleshooting Mobile Devices

Question 1

How are swollen batteries caused, and what problem can they create?

Answer 1

They are caused by overcharging and they can create power issues

Question 2

List the steps for repairing a device after liquid damage.

Answer 2

1. Dry off excess liquid
2. Power off the device
3. Disassemble the device
4. Clean the circuit boards and contacts
5. Replace the battery

Question 3

How do you fix a damaged port?

Answer 3

Remove and replace it

Question 4

How can digitizers fail?

Answer 4

Liquid damage or shock damage

Question 5

Name four possible parts of the screen that could be broken

Answer 5

1. Glass
2. Digitizer
3. Screen
4. Backlight

Question 6

Where could the issue be if there are dim images?

Answer 6

With the backlight or the inverter

Question 7

Where should you use your mobile phone to maintain a good wireless connection?

Answer 7

Between 30 to 50 metres away from the wireless access point

Question 8

What should you check if a mobile phone is having connectivity issues?

Answer 8

That it is connected to the right SSID with the right password

Question 9

What could be some indicators that a mobile device is infected with malware?

Answer 9

• Excessive power drain
• Significant data transmission
• Asking for additional permissions

Question 10

How do you recover a mobile device with a malware infection?

Answer 10

Back up the data, then format the device and re-install the base OS