I got a Navi card for the Mazda 3 BM/BN a while ago. It also worked perfectly – until trying to update it with the Mazda toolbox. Backup SD card –> clear Download new update Install update to SD card –> breaks off at 97% Since then the Mazda doesn’t recognize the card anymore. Think – no problem, have created a backup before. But unfortunately you can’t play back the backup – always server error or whatever. I even have it on multiple devices try, no chance. So either I’m waiting for the next update so that the program will re-describe my SD card or you know a way I can play my backup again. BTW’s SD card diagnosis in the Mazda Toolbox says that everything is okay with the card and there are no updates. I’ve never had to use such a bad software before… I don’t recommend doing any update to everyone 😉