It was working fine but the battery is not good so sometimes it just turned off when the car ignition was off before I could actually switched the TT off.
It is a TT XL IQ routes version
Navcore 9.5.10
Bootloader S5.5277
It stops at the startup screen.
If I connect and control it from TT Home then it asks for the country, and some basic settings such as miles or KM and the time ...