Thanks for all your messages !
Seem very complex compared to my old cars
Let me recap:
- Disconnect the high voltage (right panel in the back) but confused exactly where this one is...
- Disconnect Aux battery (left from the back),
- Disconnect Main battery (right)
Do the job required - Android...
- Reconnect Main
- Reconnect Aux
- Reconnect High Voltage
- Reset Sunroof, clock
- Reset steering with cable and ISTA-D (which I never did so far).
Are these the correct steps ?