Thread: nüvi 3x0 SD & Map Size Limits

Originally Posted by smokefree

Beware! Theoretically *), a 2 GB SD card with have space for 1.86 GB worth of data. In practise, a 2 GB SD card will only have around 1.83 GB of space available for data. See screen shot below:

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*) 1 GiB = 2^30 = 1,073,741,824 bytes, whereas 1 GB = 10^9 = 1,000,000,000 bytes
Therefore a 2 GB SD card provides 2*(10^9/2^20) = 1.86 GB of storage space (and in practise, as mentioned, often even less).
As a result, the 1.84 GB USA & CA map may not fit on a 2 GB SD card.
For more detailed explanation, see here:

Code:

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sorry but my kit work well in 2gig SD, check my post, i dont have problement with map without Mexico o0n 2gig SD, the bug is with full maps 2.11gig on bigger SD, i'll download actualy the Bam Bam's kit IMG for one other test