Hi, Firefox58,
I tried, but cannot find the gupdate.gcd in the first step.
Also, there is no any ".System" folder in the device root folder.
Would you please do me a favor?
This is my machine hardware information.
Thanks for you help :)
<Model>
<PartNumber>006-B1722-A0</PartNumber>
<SoftwareVersion>420</SoftwareVersion>
<Description>nüvi 2567</Description>
</Model>