I have exactly the same problem, language problem. Before I made the backup I did not change to English (US) at the regional settings in the Axim. So now when I want to restore I also get a language error. Even when I change to English (US) before I try to restore the same problem shows up. I have not read that you have to change these regional settings BEFORE the rom backup. I just found it out when browsing this forum.....
I tried to copy a ROM from a Dell Basic model (I have the Advanced version). First changed the language to English (US) and made the backup from the Basic model. Then I tried to restore that version to the Advanced model. I got some error that the verify-action on the image file gave me a message that the image file could be damaged so I could not restore. Somebody any idea if is possible to restore a rom from a basic to an advanced model?
I tried to follow the steps from this spanish guy Ajelandro to manual restore a A03 rom, but i get some error about a wrong info file.