ELECTRONICS NFC - Duplicate building VIGIK

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Requirements :
- Smartphone with NFC
- Download app Mifare Classic Tool https://play.google.com/store/apps/details?id=de.syss.MifareClassicTool&hl=fr%EF%BB%BF
- Buy NFC badge 13.56mhz UID changeable S50 on Aliexpress https://fr.aliexpress.com/item/32956735195.html?spm=a2g0o.productlist.0.0.234e744dfmBiZQ&algo_pvid=262a90d4-45f2-4c6a-87a1-b9071b4c090e&algo_exp_id=262a90d4-45f2-4c6a-87a1-b9071b4c090e2&pdp_ext_f=%7B%22sku_id%22%3A%2267475240512%22%7D&pdp_npi=2%40dis%21EUR%21%212.83%21%21%212.07%21%21%400b0a556516539161444237605e85f3%2167475240512%21sea


Process :
1) ORIGIN BADGE Read tag, checked all options extended-std.keys and std.keys
2) ORIGIN BADGE Click on START MAPPING AND READ TAG
3) NEW BADGE (do not do it on source origine badge) Click on Write Dump (Clone)
4) NEW BADGE Select all sectors then OK


How it works ?
- As we all know normal Mifare 1k s50 card's manufacturer blok (UID/block 0) is read only.
- This special mifare card "UID changeable" has a rewritable UID.


Source App Process : https://www.latelierdugeek.fr/2019/06/14/dupliquer-son-badge-dimmeuble-avec-un-smartphone-cest-facile/