comptia-a-plus-core2/labs/TRB-2-mobile-os-app-issues-lab.md

Lab TRB-2: Mobile App Troubleshooting Checklist

Domain:

• 3.0 Software Troubleshooting

Works on:

• Android
• iOS

Goal

Practice safe mobile troubleshooting checks without deleting personal data.

Part 1: Pick One App

Choose a noncritical app.

Record:

• App name:
• App version if visible:
• Last update status:
• Storage used by the app:
• Permissions granted:

Part 2: Battery and Storage

Record:

• Available device storage:
• Top battery-using app:
• Battery saver mode status:
• OS update status:

Part 3: Connectivity

Record:

• Wi-Fi connected:
• Bluetooth enabled:
• NFC enabled, if present:
• Airplane mode off:

Part 4: Scenario Matching

Choose the best first checks:

1. App will not install.
2. Bluetooth headphones will not pair.
3. Phone battery drains quickly.
4. Screen will not rotate.
5. App crashes after launch.

What You Should Learn

• Mobile troubleshooting is usually low-risk checks first.
• Storage, updates, permissions, and connectivity solve many app issues.
• Avoid factory reset unless simpler steps fail and data is backed up.