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Originally Posted by ProDigit
SD, and MicroSD cards are much more prone to wear than regular flash memory, which has a controller built in.
I've ran operating systems from SD cards, and they usually go bad after a good month to 4 months.
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So you expect Kobo ereaders will only last 1-4 months too? Kobo would have gone broke long ago if that was true, as most of them (all the current ones except the Aura) have their operating system on removable micro-SD cards.
Of course if you buy poor quality or counterfeit cards then they will fail sooner, but there is no reason to expect that a good quality micro-SD card will fail within 10 years if it is not being frequently inserted and removed. [EDIT: 10+ year typical lifespan according to
SD Association]
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Concerning copying the old card info to a new one,
Is it regular copying, or are there any boot flags that need to be set?
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You need to copy the raw image, not just the filesystem. In Linux you'd use the dd command. [EDIT: There is a thread describing the process in detail:
Memory Upgrade Mod Guide (With Pictures), but for the H2O there is the added complication that you would need to re-seal it afterwards it you want it to remain waterproof.]