Chinese radio and Naviextras hardly have anything to do with Navigon
Besides, since the company no longer exists, you can't hope for anything, legal updates even less
What exact device do you have?
There must be an info somewhere in the settings of the device, its software ... and last look at the sticker on it
You can post the device picture, and you can also post screenshots of the contents of the SD card
If it is "pure Chinese" without any software, you are looking in the wrong place/section
If you didn't know where to ask, then you should (read and) post in the general section:
[Only registered and activated users can see links. ]
Familiarize yourself with the basic rules of the Forum and posting, first. Browse it carefully
We'd be happy to help, we just need some details
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