My 2017 Octavia Tdi suddenly lost its computer memory. I performed a factory re-set which brought back the digital speedometer display but the central locking now unlocks only the driver's door. There may be other functions missing that I'm not aware of. Any advice welcome please.

There is a setting to choose if unlocking does just the drivers door or all of them. You just need to change it back 👍

Thank you - this may help others as clueless as me: Select CAR on the centre console. Then select the cogs icon at bottom right of the screen. Then touch the screen to scroll up and down the various settings. I'm ecstatic at also  turning off the intensely annoying "driver alert" warning that pops up at random when I'm wide awake and not dozing off 😁