Computer Support/Hardware Troubleshooting/Mobile Devices

This lesson covers troubleshooting mobile devices.

Objectives and Skills

Objectives and skills for the troubleshooting mobile devices portion of A+ certification include:^[1]

Given a scenario, troubleshoot and repair common mobile device issues while adhering to the appropriate procedures.

• Common symptoms
  • No display
  • Dim display
  • Flickering display
  • Sticking keys
  • Intermittent wireless
  • Battery not charging
  • Ghost cursor/pointer drift
  • No power
  • Num lock indicator lights
  • No wireless connectivity
  • No Bluetooth connectivity
  • Cannot display to external monitor
  • Touchscreen non-responsive
  • Apps not loading
  • Slow performance
  • Unable to decrypt email
  • Extremely short battery life
  • Overheating
  • Frozen system
  • No sound from speakers
  • GPS not functioning
  • Swollen battery
• Disassembling processes for proper re-assembly
  • Document and label cable and screw locations
  • Organize parts
  • Refer to manufacturer resources
  • Use appropriate hand tools

Multimedia

1. Watch YouTube: Troubleshooting Laptops - CompTIA A+ 220-901 - 4.5.
2. Watch YouTube: Troubleshooting Mobile Devices - CompTIA A+ 220-901 - 4.5.
3. Watch YouTube: Device Disassembly Best Practices - CompTIA A+ 220-901 - 4.5.

References