MacBook Pro (13-inch) Symptom Charts — Communications 90
2010-09-14
4. Is computer pairing with user’s
Bluetooth device?
Yes Connection established,
continue testing for
connection loss, go to step 7.
No Check for software updates
for both computer & device.
K07
5. Run Clamshell Service
Diagnostic utility and check
for all devices presence. If not
found, reseat camera cable on
logic board. Is the Bluetooth
radio present, on and pairing
with a known-good device?
Yes Loose cable connection. N04
No Go to step 6.
6. Install and test a known-
good display clamshell. Is the
Bluetooth radio present, on
and pairing with a known-
good device?
Yes Replace display clamshell. L16
No Replace logic board. M11
7. Continue to actively test
a known-good Bluetooth
device to determine if there
is a disconnect. Do not allow
computer to sleep during this
test. Is link lost during test?
Yes Check for software update,
2.4 GHz radio interference or
device low battery.
No Known-good device passed,
test with user’s Bluetooth
device.
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”.
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.
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