Apple MD094LL/A Manuale Utente

iMac (27-inch, Mid 2010) Symptom Charts — Input/Output Devices 

 2010-09-09

Apple Wireless Mouse/Magic 
Trackpad erratic tracking.
•  Cursor tracking is jumpy.
•  Tracking /Clicking/Tapping 

actions not working

•  Unresponsive tracking and 

wrong gesture triggers

1.  Verify all software and firmware updates have 

been installed.

2.  Verify the Bluetooth device software has been 

installed.

3.  Verify that customer is not using more than three 

Dual Link Bluetooth input devices at the same 

time on same computer.

4.  Cover the entire pad surface for some seconds to 

reset it. 

5.  Clean mouse sensor/trackpad surface.
6.  Review the “Troubleshooting wireless mouse and 

keyboard issues, ”

.

7.  Use a known-good Mac OS X up to date 

computer with Bluetooth enabled in Bluetooth 

Preferences, where a known-good similar 

Bluetooth device could be previously paired, and 

where a wired mouse is connected.

8.  (Apple Wireless Keyboard, Magic Mouse or Magic 

Trackpad) Download and run the Bluetooth 

Service Diagnostic utility (available in the Disk 

Images page of GSX/Service Source), checking 

the Restore Defaults Settings option.

9.  (Apple Wireless Keyboard, Magic Mouse or Magic 

Trackpad) If Bluetooth Service Diagnostic utility 

passes, try to pair again the device using the 

Bluetooth Setup Assistant.

10. Replace defective Bluetooth device specifying the 

code provided by Bluetooth Service Diagnostic