Did you or have you got a back up of your device. if so copy all the files back to your tt.
navcore 9.026 would be a more favourable one to use although 9.051 may also work. the ALG and IQ routes are down to the map version.There is a sticky on the map section showing which maps have what features obviously 835.2419 does not have ALG or IQ routes.
latest maps are 845 try the 845.2645 in the map section. The speed cameras would have been in your old map folder so you need to copy them to your new map when you have one with the features you require.