I tried the update and had exactly the same issue as AtomAnt, I found the work around in the Toyota forum someone had linked here earlier where you delete the phasedat file and rename another one. Managed to get to the installation complete screen but then when asked to insert USB 2 with rc2002 it would not start the software update, I suspect I need to rename one of the files on the stick as I did earlier with USB 3. But even after USB 3 completing successfully the DCU did not change from DB01 to DB30 but the audio and nav number have changed to exactly what it shows in the instructions.