CompTIA A+ Certification Core 2 (220-1102) - Mobile Device Troubleshooting

The video tutorial covers common issues with smart devices, including touchscreen responsiveness, dim displays, external monitor connectivity, audio problems, wireless and Bluetooth connectivity, app errors, slow performance, battery life, overheating, frozen systems, and system lockouts. Solutions such as rebooting, recalibrating, adjusting settings, and uninstalling apps are discussed to resolve these issues.

What is a common solution for a non-responsive touchscreen on a smart device?

• Increase the screen brightness

• Reboot the device

• Install more apps

• Replace the touchscreen

If your device's display is dim, what should you check first?

• The device's RAM

• The device's Wi-Fi connection

• The auto-brightness setting

• The device's battery level

What might cause no sound to come from your device's speakers?

• The device's screen is locked

• The device's battery is low

• The device is connected to a Bluetooth headset

• The device is in airplane mode

What should you do if your device has intermittent wireless connectivity?

• Check for interference from nearby networks

• Replace the device's battery

• Turn off the device's Bluetooth

• Increase the device's volume

How can you improve a smartphone's slow performance?

• Install more apps

• Clear app caches and reduce running apps

• Increase the screen brightness

• Turn off the device's Wi-Fi

What is a potential cause of a device overheating?

• The device's screen is too bright

• The device is placed between two books

• The device's battery is fully charged

• The device is in airplane mode

What is a recommended action if you experience a system lockout?

• Install a new operating system

• Turn off the device's Bluetooth

• Perform a factory reset

• Increase the device's RAM