I have a TomTom XXL that I attempted to update the software for and performed a backup of before hand. After the update the maps are gone and trying to fix it using the HOME app forced a backup but instead of making a second backup it overwrote the first losing the backup of the maps.

Now the unit works fine, except it doesn't have maps. It had the USA, Canada & Mexico maps but the 945 of the same map doesn't fit. Formatted the unit has 1.84GB of space, and currently only 1.74GB free.

Any suggestions on what maps to use. Need to get this working again for my mother.