System information

Mac mini (Mid 2011) Symptom Charts — Communications 45
2011-07-21
Wi-Fi/Bluetooth Card Kernel Panic
Quick Check
Symptoms Quick Check
Wi-Fi/Bluetooth Card Kernel
Panic
• Kernel Panic on startup
• Kernel Panic or freezing while
attempting to connect to Wi-Fi
networks
• Kernel Panic while transferring
data on Wi-Fi networks
1. Ensure that all software and rmware updates for
the computer have been installed
Isolate potential OS related issues by starting up
from another bootable device:
-from the same Mac mini model setup in Target
Disk Mode,
-from a compatible known-good up-to date Mac
OS X installed on an external drive,
-by pressing the Cmd-R keyboard keys while
restarting, to access the Mac OS X Utilities
available from Recovery HD.
Note: The computer may need to be connected
to a network with Internet access.
Deep Dive
Check Result Action Code
1. Remove bottom cover,
disconnect AirPort antenna and
remove shield, disconnect and
remove fan and cowling, then
disconnect the following cables
from logic board before being
able to extract it: HDD/SSD,
second optional HDD/SSD, IR/
LED cable, Power supply cable.
Disconnect AirPort/Bluetooth
ex cable from logic board.
Reconnect power supply and
internal drive(s) ex cable(s)
and retest. Does computer start
without kernel panic?
Yes Possible logic board issue.
Go to Kernel Panic/System
crashes symptom.
No Reseat AirPort/Bluetooth ex
cable to the logic board and
to the AirPort/Bluetooth card
and retest. If problem persists,
replace AirPort/Bluetooth ex
cable. Go to step 2
2. With replacement AirPort/
Bluetooth ex cable installed,
does computer start without
kernel panic?
Yes AirPort/Bluetooth ex cable
issue. Issue resolved.
No Replace AirPort/Bluetooth
card. Go to step 3.
N13