TT GO730, boot 5.5229, NC SE 9051, Map 890.4222
I upgraded my NC to 9.051 because my 9004 would not work the new 890 maps.
To prevent TT Home from downloading & installing Navcore 9.430, I opened the "ttgo.bif" and renamed the application version number to 9430 and application version to 890926.1 as I had in the previous 9004 version.
I then saved it as "ttgo.bak" and rebooted as stand alone.
Now all I have is the "ttgo.bak" file and NO "ttgo.bif" as I got before upgrading to 9051.
Anyone any ideas as to why ???