IGNORE HIM, HE DOES NOT KNOW WHAT HE IS TALKING ABOUT..This comment is a bit confusing. I have a NA 2020 CX-5 (non 10" display), currently at 70.00.335, which was factory installed. Can I take this to 74.00.230 without changing the display or CMU? Do I just need the cmu150_NA_74.00.230S_update.up file?
Yes being in NA and using 70.00.335 you can install directly to NA N 74.00.230A.
A 2021 CX-5 and CX-9 with 10 screen already has carplay/aa and uses latest UI style from 2019 Mazda 3 and CX-30
and for NA it is new NA03 .kwi files which will never install anyway in any .up system.
(To add to confusion to some there are 2021 CX-5's base models that still use 8 inch screen and 74.00.xxxx, like in Australia.)
2021 CX=5 MAXX with 8 inch