Resolution od your device is 480, but have only 64MB RAM. So, it is recommended to use Primo 2.0. Maybe even version 1.2.
Try with:
Spoiler: link
It is pure software, Primo 2.0 version 9.6.5.306142, add files of your choice: language & voice, maps, pois...
Also, change in sys.txt port and baud rate to: Port - COM1, and Rate - 38400.
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