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Upgrading NAV unit

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Old Jul 17, 2012 | 02:38 AM
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leighv
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From: na
Default Upgrading NAV unit

Hi all,

I've read on this forum on the GS upgrade, and have a few questions.

How do I know what version of the NAV I have?
What do I need - screen, nav unit, etc in order to perform an upgrade?
What is the last version of the unit - is 5 the last version?

Thanks.
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