@Daniël Boekel
I got a new 48/5000/70 Quattro (230V) yesterday to replace my MultiPlus of similar specs. I want to upgrade the firmware but I'm scared of a bad flash. It has the 413 firmware. Can I get the same firmware sent to me just in case something goes wrong. I want to go the ESS route and have everything ready. It's requesting I have firmware 415 or higher and I have downloaded 433, 459 and 469. Kindly tell me which you think I should flash. I already have the BMV-712, BlueSolar 150/85, CCGX and the necessary peripherals for connectivity.
Thanks