Forum › MIFARE and NFC Reader IC`s › How to write and read data blocks › Reply To: How to write and read data blocks
Hi Yocki,
OK, we can exclude a reader issue. Sector 3 behaves like all other sectors. The only difference is sector 0 where the first block is not writable and contains the UID. All other sectors have an identical access behavior.
You are sure the MIFARE Classic is a genuine NXP product? It exist manufacturers who sell counterfeit cards which behaves a little bit like bit like a NXP product, but not at all. Those products have a lot of technical problems and will at the end not satisfy for requirements. You should check this question with your local card dealer.
The TapLinx team
OK, we can exclude a reader issue. Sector 3 behaves like all other sectors. The only difference is sector 0 where the first block is not writable and contains the UID. All other sectors have an identical access behavior.
You are sure the MIFARE Classic is a genuine NXP product? It exist manufacturers who sell counterfeit cards which behaves a little bit like bit like a NXP product, but not at all. Those products have a lot of technical problems and will at the end not satisfy for requirements. You should check this question with your local card dealer.
The TapLinx team
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