Firmware downgrade Tomtom One

[Andy_P]

I don't understand your first sentence.

You succeeded in downgrading the software on the card, but the TT says there's no card available?

Or did you mean no MAP available?

 

[jgroenwold]

Sorry for misunderstandig, it was indeed no MAP available. Restore from my backyp resets also the software for TT I suppose.

 

[Andy_P]

I think we're back to the same question... if the software version on the device was "dodgy", were the maps dodgy too?

If it's the "right" map, it should work with the correct software that got loaded.