Reading NFC cards

flipper zero allows you to read, save, and emulate nfc cards an nfc card is a transponder that operates at 13 56 mhz and has a unique number (uid) as well as a part of rewritable memory for storing data depending on the card type, memory can be segmented into sectors, pages, applications, and more when near a reader, nfc cards transmit the requested data on this page, you ’ ll learn how to read and emulate nfc cards and find the list of supported nfc cards how to read nfc cards the reading process is automatic and doesn ’ t require the user to manually configure it to read and save the nfc card ’ s data, do the following go to main menu > nfc press read , then hold the card near your flipper zero ’ s back when reading is finished, go to more > save name the read card, then press save reading what ’ s on your card for some cards, flipper zero can read and show data in a readable format for example, you can get information such as the card validity date, balance, or remaining trips this functionality is made possible thanks to parsers contributed by the community you can view the full list of available parsers in the flipper zero github repository if reading failed the card might be using 125 khz rfid technology > read the card with the 125 khz rfid application the card might combine two different types of nfc cards in one card > preselect the card type you want to read https //docs flipperzero one/nfc/read#dcxwx nfc cards type a mifare classic® flipper zero can read mifare classic 1k, mifare classic 4k, and mifare classic mini cards and save data to read data stored in sectors, flipper zero has to find all 32 keys for 16 sectors (mifare classic 1k), 80 keys for 40 sectors (mifare classic 4k), and 10 keys for 5 sectors (mifare classic mini) for that, flipper zero uses keys from the system dictionary you can manually add your keys to the user dictionary by going to main menu > nfc > extra actions > mifare classic keys after flipper zero reads a mifare classic card, the original data is stored in memory when you implement changes to the data via flipper mobile app or through emulation via your flipper zero, the device generates a new shadow file representing the new data state this leads to desynchronization between the actual state on your flipper zero and the physical card to synchronize the physical card with the data state on your flipper zero, use the write to initial card function similarly, physical card data can be changed after interaction with a reader leading to desynchronization of data states to synchronize states, use the update from initial card function you can discard changes on your flipper zero by using the restore to original function in this case, flipper zero deletes the shadow file mifare ultralight® & ntag® for mifare ultralight and ntag cards, flipper zero can read and save data in open pages flipper zero can write saved ntag data to another ntag card of the same type (for example, ntag 213 ntag 213) this feature is available for ntag 213, ntag 215, and ntag 216 cards the initial and destination ntag cards must have their default pwd, pack, and disabled auth0 additionally, static and dynamic lock bits must be 0 for both the initial and destination ntag cards, guaranteeing that all user memory is unlocked mifare® desfire® flipper zero can read mifare desfire cards and save data in this card type, memory is organized in applications with multiple files flipper zero reads and saves unprotected applications and files with data unknown cards when reading an unknown nfc card, flipper zero reads and saves only the uid, sak, and atqa nfc cards type v icode® slix flipper zero can read and save data stored on icode slix, slix 2, slix l, and slix s tags in these tags, memory is organized in blocks unknown cards when reading an unknown nfc v card, flipper zero reads and saves the uid and data in read blocks nfc cards type f felica™ lite s flipper zero can read, save and emulate felica lite s cards in particular, it can read the manufacture id (idm), manufacture parameter (pmm), and data in blocks nfc cards type b st25tb flipper zero can read and save st25tb cards t he uid and card data can be captured the following card types with different memory organization are supported st25tb512 st25tb512 ac srix512 st25tb02k st25tb04k srix4k other nfc type b cards for other nfc cards type b, flipper zero can only read and display the uid without saving it reading a specific card type hybrid cards combine two types of nfc cards in one card for example, an emv card can be combined with a mifare classic card in this case, you ’ ll need to specify what type of card you want to read by doing the following go to main menu > nfc > extra actions > read specific card type select the card type you want to read, and then press %ok% ok hold the card near your flipper zero ’ s back to read the card ’ s data emulating nfc cards flipper zero can emulate an entire nfc card or just the uid depending on the nfc card type and saved data to emulate the saved nfc card, do the following go to main menu > nfc > saved select the card, then press emulate hold your flipper zero near the reader to transfer data mifare, mifare ultralight, mifare classic, ntag, desfire, and icode are registered trademarks of nxp b v felica is a trademark of sony corporation