Sounds identical to my recently acquired device but from HK. Have only had it over the week-end and that was a bit distracted due to a 24hr power loss.
Anyway, so far the unit sounds same as with the same version of iGO8. So far I've been able to install Primo on a SDCard and get it running which suits me better, as my old eyes read the Primo default screen with ease.
I should warn you that I'm a Mac user and my WIN experience is limited but to answer the question about back-up, I would think the flash memory could be copied over to a SDCard. Others may have better answers if you have a Windows computer, connecting via USB for example.
Have fun and keep us posted.