Lesson 4: Mobile Device Support Lab

Core path: 42 minutes

Today you support a portable system as a collection of hardware, radios, accessories, policy, and application paths.

No personal device needs to be disassembled, enrolled in MDM, or modified.

Station A: hardware replacement decision

Supplied model data shows:

• removable battery;
• two SO-DIMM slots;
• M.2 SSD;
• removable wireless card with antenna leads;
• integrated webcam/microphone module.

Build a service plan for one component. Include model documentation, compatibility, safe access, replacement, and verification.

Station B: accessory and connector compatibility

A dock provides USB, Ethernet, charging, and display outputs. The laptop's USB-C port supports data and charging but not video.

Explain why keyboard/Ethernet can work while the monitor does not.

Then identify where microUSB, miniUSB, Lightning, NFC, Bluetooth, stylus, headset, speakers, webcam, trackpad/drawing pad, and track point fit into the mobile accessory map.

Station C: cellular and hotspot support

Evidence:

• phone supports 5G;
• SIM/eSIM profile is present;
• cellular data is disabled;
• laptop connects to the phone's hotspot SSID;
• laptop has no internet access.

Identify the healthy link and the failed upstream boundary.

Station D: MDM / BYOD

Evidence:

• user owns the phone personally;
• organization allows BYOD under policy;
• corporate app requires an approved management/profile state;
• device is not enrolled/configured under that policy.

Explain why reinstalling the app does not solve the management requirement.

Station E: synchronization

Evidence:

• network works;
• account authentication succeeds;
• mail synchronizes;
• contacts synchronize;
• calendar does not;
• calendar sync is disabled in the supplied settings;
• device is near its data cap.

Separate app/account configuration from network and data-plan concerns.

Lab record

For every station:

objective area:
user-visible symptom/request:
known-good evidence:
first uncertain/failed boundary:
controlled next check:
unsafe or premature action rejected:
verification:

Success criteria

A strong Week 5 lab record covers hardware replacement, accessories/connectivity, cellular/Bluetooth/location/MDM/sync, and troubleshooting without treating the entire mobile device as one black box.