I've never personally unlocked one of these devices, but from searching around they seem to be similar to other Spirit/Moov devices where the device looks for a executable in the flash drive and if available, it runs it.
Usually it is...
\My Flash Disk\Default\Auto.exe My Flash Disk is what Windows CE calls the internal flash drive.So that means you just make a folder called
Default in the root of the drive and rename the unlock file to
Auto.exeIf that doesn't work there is a file called app_startup.txt that contains lines similar to these...
sdcard_runExecutable(SmartST_CE - Run()): CreateProcess(
\Storage card\TATA_400A\auto.exe) failed, error 2
sdcard_runExecutable(SmartST_CE - Run()): CreateProcess(
\Storage card\Default\auto.exe) failed, error 2
This tells you what file it tries to run.
I see a lot of users having success with
this unlock.As always with these devices there is a risk of permanent damage if you get this wrong so read everything twice and triple check everything you do.iGO Primo has the features you are looking for and runs very nicely on Mio devices.