Hi,
I have just installed a new head unit in my Rav4. A Dasaita HA5298B-V940 Android 9 screen 1024*600 PX5 cpu. Igo Pal iGO719WD
When I first installed the unit I assumed that the sd card connected via usb as a GPS card was supplied with a usb adapter.
On powering up I got the global_cfg not found error. I had the same error while driving in my other vehicle with a Dasaita head unit as well but different model running Igo israel iGO687WD_IL. I ended up fixing that on the fly by changing the global_gfg to .xxx, restarting , then changing back and it started up fine.
I tried this on the Rav4 and after I realized that there must be a hidden GPS sd card somewhere, changed the global_gfg and that worked.
Today when trying to upgrade the maps with the file manager loading the maps from a USB, I got the global_cfg error again and now can't seem to get it to work.
Firstly, why does this happen on a system that was previously working fine, and secondly is there a procedure that will always fix this?
Hope someone can help.

Thanks

Baz