ACS Apple Diagnostics & Repair Processes 3

Question 1

What types of issues does resetting the SMC (System Management Controller) address on Intel-based Macs?

Accepted Answer

Issues with power management, battery charging, fans, and thermal control

Answer

Forgotten administrator passwords and locked user accounts

Answer

Corrupted macOS installations that require a full reinstall

Answer

Network configuration and Wi-Fi connectivity problems

Question 2

What types of settings does NVRAM/PRAM store on a Mac?

Accepted Answer

Startup disk selection, display resolution, and time zone

Answer

iCloud account credentials and sync preferences

Answer

Hard drive file system structure and directory permissions

Answer

Application preferences and individual user-specific settings

Question 3

After replacing an iPhone battery, what step should a technician perform to ensure accurate battery health reporting?

Accepted Answer

Run battery calibration in AST 2 to synchronize health reporting with the new battery

Answer

Perform a full DFU restore and configure the device as new

Answer

Replace the TrueDepth camera module to recalibrate sensors

Answer

Reset all settings through the iOS Settings app

Question 4

After completing a Mac repair, what is the recommended final step before returning the device to the customer?

Accepted Answer

Run post-repair diagnostics in AST 2 to confirm all components function correctly

Answer

Submit the repair order in GSX and immediately close the ticket

Answer

Restore the device from the customer's Time Machine backup

Answer

Enable FileVault and allow a full disk encryption pass to complete

Question 5

Where should a technician verify a device's warranty status and service eligibility before beginning work?

Accepted Answer

In GSX (Global Service Exchange) using the device's serial number

Answer

In System Preferences > General > About on the device itself

Answer

In the Apple Business Manager admin portal

Answer

On the customer's Apple ID account settings page at appleid.apple.com

Question 6

What does a flashing folder with a question mark at Mac startup indicate?

Accepted Answer

The Mac cannot locate a valid bootable system on the startup disk

Answer

The installed macOS version requires an urgent security update

Answer

The Time Machine backup volume is corrupted and unreadable

Answer

The RAM modules are unseated or have failed

Question 7

What is the recommended first step when a customer reports an iPhone with an unresponsive touchscreen?

Accepted Answer

Attempt a force restart before running diagnostics or considering hardware repair

Answer

Immediately replace the display assembly to resolve the hardware fault

Answer

Restore the device in DFU mode to rule out firmware corruption immediately

Answer

Replace the battery, as insufficient power frequently causes touchscreen failures