Can you please offer that help with reverting back to the previous version
David has answered the part about the difference, lets get some instructions on here:
I assume you are wanting to take the 730T back to Navcore 8,302
You can download this version by clicking
Go-x20_Navcore 8,302
Go-x30_Navcore 8,302
To install this to your device I use WinRar which you can download from
Here Switch the TomTom on and connect it to your PC, if TomTom Home starts up exit the application as Home isn't needed for this.
Double click the downloaded file
Depending upon which one you downloaded and winrar will fire up, use the mouse to select all files and folders then click "Extract To"
Please note the screen images I have used for this post are from an earlier version of TomTom Navcore, but the process is the same if installing any Navcore to the device.
Locate the drive letter associated with your TomTom and click it, make sure the Overwrite mode is selected to "Ask before overwrite", then press "OK"
When the dialogue box pops up saying "Confirm File Replace" click the "Yes To All" button.
Sit back and watch the progress bar, with a good USB2 connection a Navcore 8,302 installation will take around 2 minutes.
When its finished the update use the "Safely Remove Hardware" icon from the Task Tray and remove the lead from the device.
Let the device boot up and tap the sat strength meter (lower left) followed by the version box, the resultant screen will confirm the version installed is Navcore 8,302 - Mike