RedBaron
2014 & 2019 CX-5 Touring(s), 2023 CX-50 TPP
Yes they do, but only if they are constantly being written-to. The cells eventually fail. There are some fail-safe protection mechanisms, spare cells, blocked cells etc, but all will eventually after many 10's of thousands of writes.SD cards have a lifespan limit? It's purely an electrical device with no moving parts. If the device isn't being constantly removed and reinserted, how does it wear out? Do the electrons get tired and refuse to cooperate or what?
I have SD cards that I use in my cameras that are several years old and have been removed and reinserted many a time. They work perfectly and show no signs of wearing out.
YMMV
However, none of that explains why a Nav card would fail in a couple of years