Hi, I've got a "bricked" Mio 5400 LM from a friend of mine. I do no know what he did with it but it is stuck in the Mio splash screen. He has no backup of device.
When connected to PC both internal disk and SD are visible but MioMore Desktop cannot connect to device.

The internal disk content seems to be broken to me, it contains just these folders:

31303030303030303030363465613561
'My Documents'
Navman
'Program Files'
'System Volume Information'

And the files:

app_startup.txt
cfpins.xml
DesktopLauncher.exe
device.sig
device.xml
INSTALL.INI
MIO.ICO
PATHS.XML
Source.txt
touch.ini
UPGRADE.HTM

Only Navman contains 216MB of data, other folders are empty or just with some subfolders, no files.

Any advice, please, how to recover it to any functional state?