 Apple Technician Guide - tim.id.au

2010-08-05
8. Continue to test user’s
Bluetooth device to determine
if there is a disconnect. Do not
allow computer to sleep during
this test. Is link lost during
test? If link is lost during start
up, turn on System Preferences:
Bluetooth: Advanced: “Open
Bluetooth Setup Assistant at
start up when no input device
is present”.
AirPort Card: Kernel Panic
Yes Check for software update, 2.4
GHz radio interference, device
low battery or user’s device
features list for explanation.
No User’s device not losing
connection. Issue not
repeatable or resolved.
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, camera,
microphone, top case
Quick Check
Symptom Quick Check
AirPort Card: Kernel Panic
• Kernel panic on boot
• Kernel panic or freezing while
attempting to connect to Wi-Fi
networks
• Kernel panic while transferring
data on Wi-Fi networks.
Deep Dive
1. Isolate OS by booting from original install media
(10.5.x). Attempt to connect to Wi-Fi network.
2. Use Software Update to make sure all AirPort
software and firmware updates have been
applied.
Check Result Action Code
1. Use Software Update to make
sure all AirPort/Bluetooth
software and firmware updates
have been applied. Ensure
MAC address filtering is not
enabled on the base station. Is
kernel panic resolved?
2. Reseat the camera cable
connection to the logic board.
Is kernel panic resolved?
Yes Software issue.
No Go to step 2.
Yes Go to step 4.
No Go to step 3.
MacBook Pro (15-inch, 2.53 GHz, Mid 2009) Symptom Charts — Communications 66