A couple of newbie questions

[amal]

@amal

@mousey

Just to make sure I’m fully understanding the xSIID …The DT page says " there are no apps available that properly identify and write to the entire user memory " and “ larger data which must extend into the second memory sector will fail ”. I feel like this is a misrepresentation and that DT is talking about the memory like all 2k should be NDEF capable.

yes actually… I will fix this on the site…

Ok to fix it first i needed to explain it…

So what happened with the 2k memory on the xSIID?

TL;DR - The first batch of xSIID made December 2019 were formatted to try to use all 2k of memory across two 1k memory sectors for NFC applications, but the NFC stacks built into Android and iOS phones don’t know how to properly read multiple memory sectors in NFC Type 2 chips. Future batches are formatted to only use the first memory sector which is 1k for NFC applications. The remaining 1k is still readable and writable by phones, but only with a custom smartphone app that can directly address…