BlockchainCommons / BlockchainCommons/GordianSeedTool-iOS
BUG: Writes to Large NFC Tags Fails
- Dominant language
- Swift
- Stars
- 51
- Forks
- 10
- PR merge metrics
- No merged PRs in 30d
Description
Writes to large NFC Tags never occur. No errors, no timeout, just no writing.
924 byte NFC Tags work fine at the upper end, 8 kbyte NFC Tags fail at the lower end. The exact boundary is presumably somewhere in between.
Potentially, this could be an issue with a single manufacturer. The precise cards we're having problems with are Mifare Desfire EV1 8K, part #B2004-5, or on Amazing B01FR6GZQY.
If we write an initial record on [NFC Tools](https://apps.apple.com/us/app/nfc-tools/id1252962749), they then become normally writable and readable, which suggests there is _some_ way to do it in iOS, just not with Apple's normal tools.
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