Since you have the original working µSD cards, I would recommend using whatever utility you prefer for creating an image of the card ( BalenaEtcher seems to be popular ) and then copying that image to the new larger µSd card. DiskUtility should be able to resize the FAT32 partition once the copy operation is complete. Repeat for the second Libra 2.
Not sure about your issue with Disk Utility though you are mentioning dmg which sounds as if you are trying to modify the disk image not the physical disk. There are other MacOS partition managers but I haven't made use of one in several years.
Last edited by DNSB; 07-31-2024 at 03:49 PM.
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