@Butters
thank you for your answer,
the astro 220 HWID=570 was a 2010 device, without a visible file system accessible in Mass Storage Mode as you already know.

You wrote:
Modern devices with Mass Storage Mode don't play so nice using G7ToWin to dump regions as it was designed for use with older units which didn't have a visible file system.

So, are you telling me that there is a way to dump the region 0E with G7ToWin ? Any tutorial ?
I tried with GPSDaemon without success.