Okay, than you are having trouble reading

This is not Mio Moov M300 as your statement, it's a Mio Moov 300. Those 2 devices are very different.

This is Mio Moov M300:
[Only registered and activated users can see links. ]

Anyway I will prepare you SD unlock for your Mio, so everything will run form SD..Check this post a little later..