unfortunately Mazda must have caught on because by February of 2023 you could no longer update thru their app with non oem sd cards, Buy another on amazon and try and update and see what happens. One thing I have read repeatedly is people say they can't update now and people say funny I updated mine but those were all done prior to Mazda putting the kabosh on it.
even maznav states it as does most amazon or ebay sellers. maznav started divulging that info after I complained to them that they were being misleading by not letting people know.
The team at Maz Nav Store are offering the very latest Mazda SD Card GPS Navigation card: TD2K66EZ1A. Compatible with Mazda 3 CX-5 CX-50 CX-9 CX-30 and MX-30 models (depending on model year). Please message our team today to see which card is compatible for you.
maznavstore.com