Some saves are locked to a device (MU or HDD), ie. from inside the game you can play with that save only from the device it was bind to.
You'll also notice that Xbox360 dashboard will refuse to move or copy that save!!!.
Xploder handle those saves just fine, you can transfer such a save to your MU, but remember: it will be bound to it.
Note 1: So if a message pops up saying "Have a save created specificaly for this MU and try again", follow these steps:
1. Connect that MU to your Xbox360.
2. Place a game inside and run it.
3. Inside the game, create a new save selecting that MU as a target device.
This operation may differ from game to game.
Don't panic, in any case, you DON'T need to touch your previous saves you may have, just create a new one on the MU.
If the game does not allow that, try a different game or backup other saves first.
4. Connect the MU with the save just created to PC and start Xploder.
5. Try again to transfer the device locked save.
Note 2: It will not work if you simply copy a save to MU using dashboard, you must have a game create a new one on MU!
The operation described above is a one-time one. Once the Xploder "sees" the new save you created,
it's able to sign device-locked saves and you don't need that save anymore.
Note 3: In case you need help regarding the usage of Xbox360, on how to run a game, how to copy a save, what is a save, handling devices, MUs and HDDs etc...
Thank you
Colour codes for version 2
move only - green
no lock - white
profile lock - orange
device lock - red
profile and device lock - black