Thread: Modding nuvi 22xx, 23xx and 24xx

Updated list of features in region 140

offset - feature
09 - 3D buildings
0A - 3D Terrain
0C - TTS Phonetics
0C - Junction View
0D - Line Assist
0E - Speed limit
0F - Traffic Eula
10 - Photo Nav
11 - ASR
12 - Historic Traffic
13 - Custom Avoidances
14 - Advanced Detours
15 - Premium Points Addressing
16 - 2D Footprints
17 - Custom Main Menu
18 - 3D Buildings Supplementary
19 - Bluetooth
1A - ecoRoute HD
1B - ecoRoute Purchase
1C - ecoRoute Standard
1D - Mp3
1E - Video Player
1F - PhoneLink ?

I haven't tested it in-depth, can be errors.
I think "Premium Points Addressing" creates file \.System\oempoi.gpi, which could be a region from flash memory.