Alles anzeigenOK, that was not clear, before, but ...
... the upgrade process is comprised of 4 (FOUR) steps, and not just three:
- USB1
- USB2
- USB3
- USB1
The step number 4. is not trivial and should not overlooked. It closes the process and create a new device called "HARMANMM19RETROTOY".
It requires you to delete the car profile from your account in MyToyota portal in order to add the new multimedia device.
I strictly advise all my fellow Corolla owners to perform the step number 4. even if everything seems working.
Cheers,
Luigi
Luigi,
can you see a backup or something new on USB1 stick or does the stick looks like at the beginning?
Thanks
Franky