PN-40 Firmware Update 2.4 Release Notes

• The Connect to Computer dialog on the PN-40 should now be more reliable. This should resolve cases where the dialog did not appear on the PN-40, and your PC did not make the "USB Device Connected" sound.
• The PN-40 should no longer reset or lock up when connecting/disconnecting the USB cable on the device side. If it does lock up while performing this action, the wait for a reset is now less. Remember, as with most USB devices, best practice is to connect the USB cable to the device before powering it on.
• Battery type (1-Cell Li-Ion vs 2-Cell Alkalines) detection has been improved. This should prevent the device from shutting down too soon when swapping from Li-Ion batteries to NiMh. Please note that battery type detection only changes the Type between Li-Ion and Alkaline. If you boot with NiMh batteries, you will still need to change the setting from Alkaline to NiMh in order to have the correct battery profile.
• Fixed a case where the PN-40 could display as an Invalid Removable Drive when set to either SD Transfer Mode or Internal Transfer Mode
• Resolved an issue where the PN-40 USB connection might not respond properly when receiving commands from unknown desktop drivers/applications.
• Resolved an issue where it might take longer to change from Data Exchange mode to Map Transfer mode when connected to certain desktop systems.
• Resolved an issue where disabling WAAS, then disabling/enabling GPS would improperly enable WAAS again. The WAAS preference setting should be independent of the GPS setting.
  
  

Installing The PN-40 Firmware Update
Note the instructions below are to install the standard firmware update. If no base maps are on your PN-40 or if you had to do a low-level format of the device, scroll down to the bottom of the page to download the firmware version that contains the base maps.

1. Click Here (16 MB) to download the update and save it to your desktop.
2. Connect your PN-40 to your computer.
   
3. Select Enter for Data Exchange
   
4. Select Menu-->Device Setup-->Connect To Computer.
   
   
5. Change the USB Setting to Firmware Transfer.
   
6. Wait for a new Removable Drive to appear in My Computer on your PC.
   
7. If you had trouble at step 4, take out the SD Card and place it in a Card Reader. Then proceed to step 6.
   
8. Once the new drive appears, double-click PN-40Firmware2_4.exe on your desktop.
   
   
9. Follow the steps in this application to copy the update to your SD Card.
   
   
10. When the application is done, click Finish.
    
11. Select Restart on your PN-40 or If you had to use the Card Reader, place the SD Card in the PN-40 and Start the device.
    
12. In both cases, the device should go through a process of Validating and Updating the Firmware.
    
13. When complete, the PN-40 will reboot, and the device will be updated with the latest firmware.
    

Installing The PN-40 Full Firmware Update
Note this update is only needed if the base maps are not showing on the Earthmate GPS PN-40. If the base maps are on the PN-40, please use the much smaller firmware update above.

Click Here (130 MB) to download the full firmware update and save it to your desktop. Then follow the instructions for the regular firmware update above to install it.