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Hi guys,
New here and have recently purchased a 2016 Mazda 3, 2.0 Sport Nav.
I tried to create a back-up of my SD Card as my computer has a card reader and copied the files onto a new SD Card.
The new one doesn't work and my original card when I re-enter it in my car says its invalid.
Can you advise how to help, wanted to create a nice backup of my original map and looks like I have bricked the lot:|
Is there a way to unlock the cards
 

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Use Mazda Toolbox to backup/restore your SD-card. Not sure what you can do now, maybe someone else knows.
 

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I've been trying to backup my SD card for ages (search my thread) and an email off Mazda states it cannot be done, and if there are any issues with the card it's covered with the 3 year warranty anyway, so just get it swapped.
Just try a backup to the original card first through Toolbox
 
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