2019+ Mazda 3 Audio & Electronics
Hello everyone,
I bought a Mazda 3 of 2014 and I wanted to upgrade the firmware, look a lot of tuto but still have a question, there is a disclaimer who ask us to upgrade to 31.000.100A before updating to 59 or later, but my version is 31.000.100 without the "A" it's the same version or not ...