Hi all.
For anyone having difficulty installing Tom Tom Go 1.16.1 here is what I did on 2 phones and worked 100%
1. Install the Tom Tom Go 1.16 app from the zip file
2. Run the app and follow the steps till you get to the stage of selecting a map. Do not install a map yet!!
3. Close and uninstall the app.
4. Install the patched app and run it.
5. Download your map.
6. Happy Tom Toming!
If you have a problem with it not working on Android 7.0, like I did. Go in to Settings/Apps look for GO. Click on Storage, then CLEAR DATA, uninstall the app and repeat from steps 1 to 6.
Worked fine 1st time on Android 6.0.1
PS This was on my Note 5 and Galaxy S8+