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Years ago I rotated out a Nano S before the support by the current software was discontinued. At that time I migrated the address format and therefore did it onchain.
Coldcard allows to create backup files to the SD card. Are those upwards compatible e.g. from MK2 to MK4? I guess using such a backup saves some time.
Does anyone have experience with that or can confirm that this works as expected.
Are those upwards compatible e.g. from MK2 to MK4?
For the sake of completeness: You can not restore a backup written with an older Coldcard/firmware on a newer device.
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