My tv is professional calibrated so, after updating 75xg9505 to Android 9, i have corresponded with the people from "Sony support" and with an authorized service ...... their answer is:
Your pre-reset request cannot be honored, your personal settings cannot be saved and / or restored later, there is no option.
The reset operation of the equipment can be done only from the user menu (Settings ==> Storage and reset ==> Factory settings), there are no other reset modes intended for service only.
Also, no one can guarantee access to a menu or another after the software update, these options are activated / deactivated by the manufacturer without the possibility of being modified later by the user / service. "
So, Sony offers the possibility of professional calibration by providing a dedicated software - Calman for Bravia (delivered with the TV), but it does not offer the possibility to save the settings, not having at the service both hardware tools and the related software, leaving the consumer / buyer / owner of the TV without the possibility to remedy any problems arising from the use, the only solution being that, whenever the firmware of the device is updated, to use the services of third parties, for additional amounts of money. The differences and experience in use, post vs pre calibration, are huge so any reset comes completely out of the discussion. Now, compare the brands and what they offer to the consumer - those of you with professionally calibrated TVs. I am very disappointed.
Last edited by diaconusm; 02-05-2020 at 10:20 PM.
Reason: wrong words