maybe you need the file GRM_nav.exe..you need to put it in the SDCARD/root:
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Thread: dnx9990hd lost internal sd card
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5th May 2018, 08:15 AM #1Junior Member
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dnx9990hd lost internal sd card
I ask for help
there are no files in internal sd memory
I think it was replaced
help with files or firmware how to restore the navigator
I solved the problem with boot loop
but I can not enable navigation
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6th May 2018, 08:00 PM #2Junior Member
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7th May 2018, 02:28 PM #3Junior Member
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I think that i clearly asked the question:
i have no files on my sd card please help with garmin files
I think compatible models are:
DNX9990HD DNX9210BT DNX7190HD DNX7490BT DNX7210BT DNX719VHD DNX7310BT DNX7310BTM DNX6190HD DNX6990HD DNX6490BT DNX5210BT DNX5510BT DNX5310BT DNX5310BTM DNX5190 DNX5060EX DNX4210BT DNX521DAB DNX4210DAB DNX4310DAB DNX649VBT DNX521VBT DNX531VBT DNX531VBTM
regards
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28th December 2020, 04:45 AM #4Junior Member
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I believe some of the files on the internal SD card are not easily read/copied. I remember several years ago there was a Kenwood specific forum (that's now gone) which had a long discussion about the internal SD card contents of the newer Kenwood head units. I dont think anyone was ever able to copy successfully all the files on the internal SD card. Of course someone may have accomplished this and I just missed it. It wasnt as simple as someone taking their SD card out, copying the files to a computer and saving those files to a new SD card.
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