Thread: Transform a Nuvi 37xx in a Nuvi 34xx for dummies

Originally Posted by jkohgin

Hey guys!

How can i check if i have an EU or US unit?

Originally Posted by Neil

@jkohgin
The US and EU fw is identical as is the hardware.

I answered the question you asked. Unfortunately my mind-reading powers where destroyed when i started dating.

If you had asked the 2nd question first, I would have given you 3 answers:

Originally Posted by jkohgin

Let me ask again: how can i be sure to have an us or EU unit and not an Asia (or what else) one that this tutorial works for it?

Is it on the data card test page "model USD"?

1. As voyager56 says, check your files backup or browse for the xml on the unit via usb.

2. You can find it on the unit though, and you were warm with 'data card test page', but that page gives you the MicroSD S/No. On first page ('SW Ver x.xx nuvi 3790'), 'Next' takes you to 'Version Information nuvi 3790' page, to reach 'Inventory' page, press 'Start Test' > 'More'. The first 3 entries (Boot BLK; X-Loader & System) have the HWID in first 4 numerals following them. For 39x0 it's 'B1101-00' followed by the fw version. After you convert to 34x0, You will have to press 'Back' about 10 times to reach the Version Information page and your HWID will then be 1376 on Inventory.

3. You can also find it by dragging the gupdate.gcd from the unit's .system folder into RGN_Tool. (See Post #1).