Apple MacBook Pro 13 inch - No;Poor Wireless Signal

MacBook Pro (13-inch) Symptom Charts — Communications 86
2010-09-14
8. (AirPort) Try a known-good
display clamshell if available.
Retest, including gentle
twisting of the camera cable
near AirPort card to simulate
clamshell cycling, and attempt
a sleep/wake cycle, and verify if
issue is resolved.
Yes Replace display clamshell.
Reassemble unit and perform
10-20 open/close cycles of
clamshell. Remove EMI gasket
(if present) below camera
cable guide, above 3 clutch
screws, to prevent strain
damage to camera cable.
L16
No Reinstall original display
clamshell. Replace logic
board.
M11
9. (Bluetooth) Enable Bluetooth
and try a known good display
clamshell if available. Bluetooth
circuitry in the clamshell is not
accessible. Retest and verify if
issue is resolved.
Yes Replace display clamshell. L16
No Replace logic board. M11
No/Poor Wireless Signal
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, microphone, top
case
Quick Check
Symptom Quick Check
No/Poor Wireless Signal
• Unable to nd networks
• Intermittent connection
dropouts
• Slow transfer speeds
1. Check for nearby interference sources in the
2.4/5GHz range such as microwave ovens and
cordless phones. See kBase #HT1365: AirPort and
Bluetooth: Potential sources of interference for
wireless devices and networks
2. Check that computer is within base station range
– move closer to base station.
3. Base station checks:
a. Base station is not set to low-power
transmission mode
b. Base station is not using unsupported
connection and encryption protocols
c. Check for possible Wi-Fi channel overlap
(nearby base stations using adjacent channel)
4. Isolate OS by booting from original OS install disc
(10.6.x). Attempt to connect to base station.