Today we sit behind the wheel, but the car won’t start. The new battery drained completely for no apparent reason. Friends helped jump-start the car, I reached the official dealer, where they charged me 200 bucks for diagnostics + firmware update.
It turned out that indeed, the firmware T-SB-0089-21 does fix some bug related to battery discharge. They assured me that I was not the only one, and now everything would be “hunky-dory” (as well as “nifty”, “tip-top”, etc.).
Hi, I'm Rauf Aliev. 