If you are new to Humminbird products, the first thing you will need to do is sign up for a user account in the MyHumminbird section of our site.  

RegistrationPage

If you already have a user account, you will need to add this new product to your account.  This is done by clicking on Register a Product under the My Product Support Section.

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Once you are logged in and the product is registered, you will need to select the ONIX software from the Downloads section.  If you are not familiar with HumminbirdPC and would like to learn, just visit our FAQ section on this topic.  

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This will then open a dialogue box with information on the version of software available, the date of the release, a description of the changes made in the release and instructions to perform the download.  Once you are ready to start the download process scroll to the bottom of the dialogue box and click on Download.  You can also print the instructions from this section.  

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The name of the software file will typically look like the name of the file in the below image.  Unless you are previously instructed to do so in the instructions in the Download dialogue box describe above, DO NOT rename the file and do not try to open the file.  This file is only meant to be saved.  Depending on your computer's operating system, the next steps can be quite different from computer to computer.  The most important steps are to save the file onto an SD card for use on your unit.  

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Once you have the software update on the SD card we highly recommend that you thoroughly read the Software Update Guide, you would then power on your ONIX or ION unit and go to your Home Screen by either pressing the home button, or the two finger swipe down the screen.

HomeKey    2FingerSwipe

From the home page you would swipe the lower widgets across the bottom until you get to file widget and then tap the files widget.
Widget

FilesWidget

You are then at the files menu and software update is highlighted.   The screen would appear as seen below:

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Place the SD card with the software update on it into your ONIX unit.  

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Then select Install Now.   DO NOT remove the SD card until the software update is complete.   The unit will power down and automatically restart.

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REMINDER, we highly recommend that you thoroughly read the Software Update Guide