How to update Ultra's eBoot and operating system?
Posted by Xavi Ventura on 15 November 2012 03:48 PM

Ultra has 3 software levels:

  • eBoot: Starting component which runs the operating system.
  • Operating systemExecuted under TwoNav and controling the more basic operations of the device.
  • TwoNav: Executed over the operating system and interacting with user.


Normally, software updates are for TwoNav, but eBoot and operating system can also have updates.



  • The user should know that this is a delicate process. It must be applied correctly, otherwise it could leave the unit unusable.
  • In order to avoid losing data during the updating process, please copy all your personal files contained in 'TwoNavData/Data' to computer (security copy).
  • Updates might take some minutes, you might need to wait so left the device working until further steps are being indicated.
  • Enough battery is needed to update the operating system, at least 30 min. 



In order to update the eBoot and the operating system of Ultra, please follow these steps:


1.  Unzip ULTRA EBOOT and ULTRA OPERATING SYSTEM at the main root of the microSD card.

Note: Use a microSD with Windows XP formated FAT32 card (more information: How to format a microSD card to use it on a TwoNav GPS?)

2.  Turn Ultra off.

3.  Press and hold 'OK' key until update process starts. The update will start automatically showing a progress bar on the screen, then release 'OK' key.



4.  Then, update process will start: 0% -> 25% -> 50% -> 75% -> 100% -> Reboot. Although you might see no signs of interaction, do NOT press any button, this process will only take a few minutes.

5.  To verify that your eBoot and operating system have been successfully updated you can check it out at 'Main menu > Settings > Full settings > System > Device > About'.

6.  Once the update is finished, you might need to re-calibrate the screen of your device.

7.  Once the update is finished, you can delete the files that you unzipped in the microSD card.


Note: In case you have lost device identifier and license registration, get in contact with After Sales Department (rma@twonav.com).

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