Nice device but not helpful, sorry.
Anyway, now I see it's an WindowsCE with IGO8 but I can't see what version and if its a original one.
Did it come with the device?
For the igo version number, goto menu - help - about. The date of the exe file can be helpful to
Can you explore what is installed on the device?
When you say the sd card is not readable on your computer, have you enabled to show the hidden files?
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