Issue with Mifare Classic Emulation (Sniffed Communation history attahced)

I just got my Flipper zero several days ago. I tried to emulate my Mifare Classic 1K and 4K cards. However, the reader at my office couldn’t recognize my flipper.

I can confirm that there’s no issue with the hardware cuz the emulation works perfectly with my home’s reader.

I then used my PM3 RDV4 to sniff the communication between the reader and my flipper. The sniffed history is attached below for different emulation functions:

(1) Mifare 4K card

      Start |        End | Src | Data (! denotes parity error)                                           | CRC | Annotation
------------+------------+-----+-------------------------------------------------------------------------+-----+--------------------
     ...
   12677328 |   12678384 | Rdr |26(7)                                                                    |     | REQA
   13772368 |   13773424 | Rdr |26(7)                                                                    |     | REQA
   13774612 |   13776980 | Tag |02  00                                                                   |     |
   19095744 |   19096800 | Rdr |26(7)                                                                    |     | REQA
   19107408 |   19109872 | Rdr |93  20                                                                   |     | ANTICOLL
   19123920 |   19134384 | Rdr |93  70  1a  49  06  c8  9d  7f  53                                       |  ok | SELECT_UID
   19146208 |   19147200 | Rdr |52(7)                                                                    |     | WUPA
   19161072 |   19162064 | Rdr |52(7)                                                                    |     | WUPA
   19168512 |   19169504 | Rdr |52(7)                                                                    |     | WUPA
   21848960 |   21850016 | Rdr |26(7)                                                                    |     | REQA
   21860624 |   21863088 | Rdr |93  20                                                                   |     | ANTICOLL
   21877136 |   21887600 | Rdr |93  70  1a  49  06  c8  9d  7f  53                                       |  ok | SELECT_UID
   21899424 |   21900416 | Rdr |52(7)                                                                    |     | WUPA
   21910560 |   21911552 | Rdr |52(7)                                                                    |     | WUPA
   21917408 |   21918400 | Rdr |52(7)                                                                    |     | WUPA
   21924832 |   21925824 | Rdr |52(7)                                                                    |     | WUPA
   24588928 |   24589984 | Rdr |26(7)                                                                    |     | REQA
   24600576 |   24603040 | Rdr |93  20                                                                   |     | ANTICOLL
   24617104 |   24627568 | Rdr |93  70  1a  49  06  c8  9d  7f  53                                       |  ok | SELECT_UID
   24639376 |   24640368 | Rdr |52(7)                                                                    |     | WUPA
   24650592 |   24651584 | Rdr |52(7)                                                                    |     | WUPA
   24657360 |   24658352 | Rdr |52(7)                                                                    |     | WUPA
   24664800 |   24665792 | Rdr |52(7)                                                                    |     | WUPA
   28903428 |   28905796 | Tag |02  00                                                                   |     |
   28912832 |   28915296 | Rdr |93  20                                                                   |     | ANTICOLL
   28916500 |   28922388 | Tag |1a  49  06  c8  9d                                                       |     |
   28929360 |   28939824 | Rdr |93  70  1a  49  06  c8  9d  7f  53                                       |  ok | SELECT_UID
   28941092 |   28944676 | Tag |18  37  cd                                                               |     |
   28951632 |   28952624 | Rdr |52(7)                                                                    |     | WUPA
   28956788 |   28957428 | Tag |04(4)                                                                    |     |
   28959088 |   28960080 | Rdr |52(7)                                                                    |     | WUPA
   28966512 |   28967504 | Rdr |52(7)                                                                    |     | WUPA
   28973936 |   28974928 | Rdr |52(7)                                                                    |     | WUPA
   33212624 |   33213680 | Rdr |26(7)                                                                    |     | REQA

(2) UID emulation:

    ...
    7033984 |    7035040 | Rdr |26(7)                                                                    |     | REQA
    8128432 |    8129488 | Rdr |26(7)                                                                    |     | REQA
   11879904 |   11880960 | Rdr |26(7)                                                                    |     | REQA
   11882164 |   11884532 | Tag |04  00                                                                   |     |
   11891568 |   11894032 | Rdr |93  20                                                                   |     | ANTICOLL
   11895236 |   11901124 | Tag |de  6b  0d  6b  d3                                                       |     |
   11908080 |   11918544 | Rdr |93  70  de  6b  0d  6b  d3  76  84                                       |  ok | SELECT_UID
   11919812 |   11923332 | Tag |08  b6  dd                                                               |     |
   11930368 |   11931360 | Rdr |52(7)                                                                    |     | WUPA
   11937808 |   11938800 | Rdr |52(7)                                                                    |     | WUPA
   11945232 |   11946224 | Rdr |52(7)                                                                    |     | WUPA
   11952672 |   11953664 | Rdr |52(7)                                                                    |     | WUPA
   15471712 |   15472768 | Rdr |26(7)                                                                    |     | REQA
   15483376 |   15485840 | Rdr |93  20                                                                   |     | ANTICOLL
   15487968 |   15488512 | Rdr |00(3)                                                                    |     |
   15489760 |   15490816 | Rdr |1e(7)                                                                    |     |
   15492576 |   15492928 | Rdr |02(2)                                                                    |     |
   15499888 |   15510352 | Rdr |93  70  de  6b  0d  6b  d3  76  84                                       |  ok | SELECT_UID
   15522176 |   15523168 | Rdr |52(7)                                                                    |     | WUPA
   15529616 |   15530608 | Rdr |52(7)                                                                    |     | WUPA
   15537056 |   15538048 | Rdr |52(7)                                                                    |     | WUPA
   15544480 |   15545472 | Rdr |52(7)                                                                    |     | WUPA
   15546768 |   15549104 | Rdr |f9  7f                                                                   |     |
   15556128 |   15566592 | Rdr |93  70  de  6b  0d  6b  d3  76  84                                       |  ok | SELECT_UID
   15578416 |   15579408 | Rdr |52(7)                                                                    |     | WUPA
   15586144 |   15587136 | Rdr |52(7)                                                                    |     | WUPA
   15593568 |   15594560 | Rdr |52(7)                                                                    |     | WUPA
   15600992 |   15601984 | Rdr |52(7)                                                                    |     | WUPA
   15610656 |   15615360 | Rdr |60  01  7c  6a                                                           |  ok | AUTH-A(1)
   15621136 |   15622128 | Rdr |52(7)                                                                    |     | WUPA
   15628560 |   15629552 | Rdr |52(7)                                                                    |     | WUPA
   15635984 |   15636976 | Rdr |52(7)                                                                    |     | WUPA
   15643424 |   15644416 | Rdr |52(7)                                                                    |     | WUPA
   18305376 |   18306432 | Rdr |26(7)                                                                    |     | REQA
   18317024 |   18319488 | Rdr |93  20                                                                   |     | ANTICOLL
   18333552 |   18344016 | Rdr |93  70  de  6b  0d  6b  d3  76  84                                       |  ok | SELECT_UID
   18345312 |   18346880 | Rdr |f3  00!                                                                  |     |
   18348512 |   18348800 | Rdr |00(1)                                                                    |     |
   18355824 |   18356816 | Rdr |52(7)                                                                    |     | WUPA
   18363264 |   18364256 | Rdr |52(7)                                                                    |     | WUPA
   18370704 |   18371696 | Rdr |52(7)                                                                    |     | WUPA
   18378144 |   18379136 | Rdr |52(7)                                                                    |     | WUPA
   21031344 |   21032400 | Rdr |26(7)                                                                    |     | REQA

(3) Another 4K card:

...
   65927504 |   65928560 | Rdr |26(7)                                                                    |     | REQA
   67021968 |   67023024 | Rdr |26(7)                                                                    |     | REQA
   67024228 |   67026596 | Tag |02  00                                                                   |     |
   67033632 |   67036096 | Rdr |93  20                                                                   |     | ANTICOLL
   67037300 |   67043124 | Tag |66  69  ab  83  27                                                       |     |
   67050144 |   67060608 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   67061876 |   67065460 | Tag |18  37  cd                                                               |     |
   67072432 |   67073424 | Rdr |52(7)                                                                    |     | WUPA
   67075972 |   67076356 | Tag |00(2)                                                                    |     |
   67083632 |   67084624 | Rdr |52(7)                                                                    |     | WUPA
   67090416 |   67091408 | Rdr |52(7)                                                                    |     | WUPA
   67097840 |   67098832 | Rdr |52(7)                                                                    |     | WUPA
   69754000 |   69755056 | Rdr |26(7)                                                                    |     | REQA
   69765664 |   69768128 | Rdr |93  20                                                                   |     | ANTICOLL
   69782176 |   69792640 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   69793952 |   69795520 | Rdr |63! 00!                                                                  |     |
   69796640 |   69797504 | Rdr |22(6)                                                                    |     |
   69804464 |   69805456 | Rdr |52(7)                                                                    |     | WUPA
   69815600 |   69816592 | Rdr |52(7)                                                                    |     | WUPA
   69822448 |   69823440 | Rdr |52(7)                                                                    |     | WUPA
   69829872 |   69830864 | Rdr |52(7)                                                                    |     | WUPA
   72481104 |   72482160 | Rdr |26(7)                                                                    |     | REQA
   

(4) The original card that worked:

[usb] pm3 --> hf 14a list
[=] downloading tracelog data from device
[+] Recorded activity (trace len = 2410 bytes)
[=] start = start of start frame end = end of frame. src = source of transfer
[=] ISO14443A - all times are in carrier periods (1/13.56MHz)

      Start |        End | Src | Data (! denotes parity error)                                           | CRC | Annotation
------------+------------+-----+-------------------------------------------------------------------------+-----+--------------------

   ...
   22663568 |   22664624 | Rdr |26(7)                                                                    |     | REQA
   23758592 |   23759648 | Rdr |26(7)                                                                    |     | REQA
   28616032 |   28617088 | Rdr |26(7)                                                                    |     | REQA
   28618276 |   28620644 | Tag |02  00                                                                   |     |
   28627696 |   28630160 | Rdr |93  20                                                                   |     | ANTICOLL
   28631348 |   28637172 | Tag |66  69  ab  83  27                                                       |     |
   28644208 |   28654672 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   28655924 |   28659444 | Tag |08  b6  dd                                                               |     |
   28666496 |   28667488 | Rdr |52(7)                                                                    |     | WUPA
   28673936 |   28674928 | Rdr |52(7)                                                                    |     | WUPA
   28676180 |   28678548 | Tag |02  00                                                                   |     |
   28692704 |   28694400 | Rdr |24  01                                                                   |     |
   28695520 |   28696064 | Rdr |00(3)                                                                    |     |
   28697316 |   28700836 | Tag |08  b6  dd                                                               |     |
   28707872 |   28708864 | Rdr |52(7)                                                                    |     | WUPA
   28715600 |   28716592 | Rdr |52(7)                                                                    |     | WUPA
   28717844 |   28720212 | Tag |02  00                                                                   |     |
   28727264 |   28737728 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   28738980 |   28742500 | Tag |08  b6  dd                                                               |     |
   28756260 |   28760996 | Tag |3b  7b  4b  91                                                           |     |
   28767984 |   28777360 | Rdr |38! 47! 05! 98! 0a! c5  0c! 92                                           | !crc|
   28778548 |   28783220 | Tag |09  b8  03  09                                                           |     |
   28790272 |   28794976 | Rdr |f3  69! 47! 46!                                                          | !crc|
   28796356 |   28817156 | Tag |c8  64! d2  72! e7  02! 6e! a6! d5  4f! 96  d4! 3b! e4! 83  fb  b5! f5   | !crc|
   28824192 |   28828896 | Rdr |cb  69  bd  88                                                           | !crc|
   28830276 |   28851140 | Tag |88  84! 21  80  1b  70! 8a! ce  09! 1d  f4  cf  2f  97! 46! bc! 32  1a   | !crc|
   28858128 |   28859120 | Rdr |52(7)                                                                    |     | WUPA
   28865248 |   28866240 | Rdr |52(7)                                                                    |     | WUPA
   28867492 |   28869860 | Tag |02  00                                                                   |     |
   28880416 |   28880960 | Rdr |02(3)                                                                    |     |
   28881568 |   28881856 | Rdr |00(1)                                                                    |     |
   28882848 |   28883776 | Rdr |1e(6)                                                                    |     |
   28885920 |   28886592 | Rdr |03(4)                                                                    |     |
   28888612 |   28892132 | Tag |08  b6  dd                                                               |     |
   28899184 |   28903952 | Rdr |60  03  6e  49                                                           |  ok | AUTH-A(3)
   28905908 |   28910644 | Tag |b8  16  74  31                                                           |     |
   28917616 |   28926928 | Rdr |0e! ee! 35  3e! d4  89! c3  b8                                           | !crc|
   28928180 |   28932916 | Tag |11! 09! 60  eb!                                                          |     |
   28939904 |   28944672 | Rdr |f1  88  35  30!                                                          | !crc|
   28945988 |   28966852 | Tag |97! 06  0e  75! f0  d4! 03! 16! f6! 5a  6f! 71! ed! 41! 31  1d  e8  a9!  | !crc|
   28981504 |   28982496 | Rdr |52(7)                                                                    |     | WUPA
   28983748 |   28986116 | Tag |02  00                                                                   |     |
   28993168 |   29003632 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   29004884 |   29008404 | Tag |08  b6  dd                                                               |     |
   29023168 |   29024160 | Rdr |52(7)                                                                    |     | WUPA
   29025412 |   29027780 | Tag |02  00                                                                   |     |
   29034816 |   29045280 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   29046532 |   29050052 | Tag |08  b6  dd                                                               |     |
   29057104 |   29061808 | Rdr |60  38  3e  c6                                                           |  ok | AUTH-A(56)
   29063828 |   29068500 | Tag |c6  7e  59  c5                                                           |     |
   29075536 |   29084848 | Rdr |63! ff! ed! 57  e5  4a! 75  53                                           | !crc|
   29086100 |   29090772 | Tag |d4! 7a! fb! 8f!                                                          |     |
   29097824 |   29102528 | Rdr |64! 98  b5  ea!                                                          | !crc|
   29103908 |   29124772 | Tag |be! 5b! 78! 5a  8c  08  f2! 13! 88  b6  c1  8f  77! 8b! 9d  d5  d0! f6!  | !crc|
   29137828 |   29158628 | Tag |a2  f1! 58  47! 57! d8! d1! 2b! 11! c5! fd! e0  1f  65  66  34! 1d! 5d!  | !crc|
   29165680 |   29170448 | Rdr |4f  fb! df  63!                                                          | !crc|
   29171764 |   29192564 | Tag |5d! c4  df  11! 97  93! f3  4a  95  70  87! 49  79  a7  b9  63  73! ca   | !crc|
   29199616 |   29200608 | Rdr |52(7)                                                                    |     | WUPA
   29208964 |   29211332 | Tag |02  00                                                                   |     |
   29218384 |   29228848 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   29230100 |   29233620 | Tag |08  b6  dd                                                               |     |
   29240672 |   29245376 | Rdr |60  3f  81  b2                                                           |  ok | AUTH-A(63)
   29247396 |   29252132 | Tag |24  da  38  31                                                           |     |
   29259104 |   29268480 | Rdr |95  32! ef  8c! c1  57  cc! e0                                           | !crc| SELECT_XXX-2
   29269668 |   29274340 | Tag |b2! 6e  21! 9f                                                           |     |
   29281392 |   29286160 | Rdr |82  4f! 8e  b2!                                                          | !crc|
   29287476 |   29308340 | Tag |90  b4  98! dc  7b  9c! b5! c7  cb  82! 36! 39  1a  41! 11  02! da  d6   | !crc|
   29315312 |   29320080 | Rdr |df  5b! 0b  a0!                                                          | !crc|
   29321396 |   29342260 | Tag |4a! c4! 46  3a  67  37! df! 58! 1a  50  53! d7! 0f  31! 54! 81! 19  88!  | !crc|
   29349248 |   29354016 | Rdr |c1  fe! 15  0a!                                                          | !crc| INC(254)
   29355332 |   29376132 | Tag |ba  6a  4b  c2! 7d! be! 0e! 60  16! d7  2e  35! cc  8f  d6  0a  92! 28   | !crc|
   29389252 |   29410116 | Tag |1f! 12  aa! 03! f3  d0  af! d7  50! b1! d3! c4  ed  e8  94  df! f1  5f!  | !crc|
   29418800 |   29419792 | Rdr |52(7)                                                                    |     | WUPA
   29438720 |   29439712 | Rdr |52(7)                                                                    |     | WUPA
   29440964 |   29443332 | Tag |02  00                                                                   |     |
   29451104 |   29461568 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   29462820 |   29466340 | Tag |08  b6  dd                                                               |     |
   29473392 |   29478160 | Rdr |50  00  57  cd                                                           |  ok | HALT
   32156128 |   32157184 | Rdr |26(7)                                                                    |     | REQA
   32158372 |   32160740 | Tag |02  00                                                                   |     |
   32171428 |   32177252 | Tag |66  69  ab  83  27                                                       |     |
   32184304 |   32194768 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32196020 |   32199540 | Tag |08  b6  dd                                                               |     |
   32206576 |   32207568 | Rdr |52(7)                                                                    |     | WUPA
   32214208 |   32215200 | Rdr |52(7)                                                                    |     | WUPA
   32216452 |   32218820 | Tag |02  00                                                                   |     |
   32225856 |   32236320 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32237572 |   32241092 | Tag |08  b6  dd                                                               |     |
   32248144 |   32249136 | Rdr |52(7)                                                                    |     | WUPA
   32258100 |   32260468 | Tag |02  00                                                                   |     |
   32267520 |   32277984 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32279236 |   32282756 | Tag |08  b6  dd                                                               |     |
   32296516 |   32301188 | Tag |73  e8  22  18                                                           |     |
   32308240 |   32317552 | Rdr |05  63! 31! 56  37  93  34! 1f!                                          | !crc|
   32318804 |   32323476 | Tag |9b! 29! 37  56                                                           |     |
   32330528 |   32335296 | Rdr |00! 78  b2! 40                                                           | !crc|
   32336612 |   32357476 | Tag |61  3a! d3  97! d4  dc! 18  b8  d6! aa! 91! 52  79  b9  17! 09! eb! 2a   | !crc|
   32364448 |   32369216 | Rdr |68  d5! 1f! f6!                                                          | !crc|
   32370532 |   32391396 | Tag |37  53! 95! 57  8b  86! 8a! dc  7b  2e! a7  1f! 6b  df! 36  c4! c4  5a!  | !crc|
   32398384 |   32399376 | Rdr |52(7)                                                                    |     | WUPA
   32405264 |   32406256 | Rdr |52(7)                                                                    |     | WUPA
   32407508 |   32409876 | Tag |02  00                                                                   |     |
   32420432 |   32420976 | Rdr |02(3)                                                                    |     |
   32421584 |   32421872 | Rdr |00(1)                                                                    |     |
   32422864 |   32423792 | Rdr |1e(6)                                                                    |     |
   32425936 |   32426608 | Rdr |03(4)                                                                    |     |
   32428628 |   32432148 | Tag |08  b6  dd                                                               |     |
   32439200 |   32443968 | Rdr |60  03  6e  49                                                           |  ok | AUTH-A(3)
   32445924 |   32450596 | Tag |eb  0a  5b  71                                                           |     |
   32457632 |   32466944 | Rdr |0e  c7! 16! ea  c0! 86! 6e  86!                                          | !crc|
   32468196 |   32472868 | Tag |19! ad! d7! 04!                                                          |     |
   32479920 |   32484688 | Rdr |2e  7f  00  2c                                                           | !crc|
   32486004 |   32506804 | Tag |13  15! 22  ce  b1  4a! d2! 76! 32! c5  cb! 32! 8e! 83  bf! fe! 98  94!  | !crc|
   32522996 |   32525364 | Tag |02  00                                                                   |     |
   32532416 |   32542880 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32544132 |   32547652 | Tag |08  b6  dd                                                               |     |
   32554704 |   32555696 | Rdr |52(7)                                                                    |     | WUPA
   32562416 |   32563408 | Rdr |52(7)                                                                    |     | WUPA
   32564660 |   32567028 | Tag |02  00                                                                   |     |
   32574080 |   32584544 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32585796 |   32589316 | Tag |08  b6  dd                                                               |     |
   32596352 |   32601056 | Rdr |60  38  3e  c6                                                           |  ok | AUTH-A(56)
   32603076 |   32607812 | Tag |70  1a  71  f7                                                           |     |
   32614800 |   32624176 | Rdr |c0! ac  5a  79! 49! 83! 12! de!                                          | !crc| DEC(172)
   32625364 |   32630036 | Tag |e6  5c! 01  68!                                                          |     |
   32637072 |   32641840 | Rdr |16  d7  8a! 97                                                           | !crc|
   32643156 |   32663956 | Tag |cf  e6  d3! 3b  11  d3! 99  91! bc! 3c! 3f  98! 00  9e! b2  f8! df! 1c!  | !crc|
   32671008 |   32675712 | Rdr |ab! 19! 1c  1a!                                                          | !crc|
   32677092 |   32697956 | Tag |a9  34  09  c8! 42  d6  f5  54! 9a  ba! 4c  9d  c5  f4  e9! 80  d2  e0   | !crc|
   32708336 |   32709136 | Rdr |0e(5)                                                                    |     |
   32711028 |   32731828 | Tag |e0  8d! 6b! 92! 58! fc  d0! 12  34  07  ef! 56  44  8e  a4! d6  1a! 74   | !crc|
   32738864 |   32739856 | Rdr |52(7)                                                                    |     | WUPA
   32746192 |   32747184 | Rdr |52(7)                                                                    |     | WUPA
   32748436 |   32750804 | Tag |02  00                                                                   |     |
   32761360 |   32761904 | Rdr |02(3)                                                                    |     |
   32762512 |   32762800 | Rdr |00(1)                                                                    |     |
   32764944 |   32766640 | Rdr |24  01                                                                   |     |
   32767760 |   32768304 | Rdr |00(3)                                                                    |     |
   32769556 |   32773076 | Tag |08  b6  dd                                                               |     |
   32780128 |   32784832 | Rdr |60  3f  81  b2                                                           |  ok | AUTH-A(63)
   32786852 |   32791524 | Tag |20  79  85  a3                                                           |     |
   32798560 |   32807872 | Rdr |c6  b6! ab  3a  57! 96! ff  52!                                          | !crc|
   32809124 |   32813796 | Tag |7d! d4! 0d! 79!                                                          |     |
   32820848 |   32825616 | Rdr |df! c1! 14! 6f!                                                          | !crc|
   32826932 |   32847796 | Tag |c8  e9! 2a! fc! e9  c5! 41! 3a  1c! c7! b5  15! 40! 1a! d0  1d! 4f! 37   | !crc|
   32860852 |   32881652 | Tag |a7! 54  7d  d3! 8f! 44  23  89! ec  56  55  ce! 84  e3! 68  12  c6! 5c   | !crc|
   32888704 |   32893472 | Rdr |3a! 80  d2! f4                                                           | !crc| READ RANGE (128-210)
   32894788 |   32915588 | Tag |42  9d! 0f! 49  2e! 2c  a8  8d  cc  a1  e9! c3  73  42! d8! ca! 01  e1   | !crc|
   32922640 |   32927408 | Rdr |22! 15! 32! 9c!                                                          | !crc|
   32928724 |   32949524 | Tag |18  64  b5  eb! b9! 26! e2! 73! 2a! b0! 7e  92  ab  d5! 7a  9d! fb! 06   | !crc|
   32956560 |   32957552 | Rdr |52(7)                                                                    |     | WUPA
   32966180 |   32968548 | Tag |02  00                                                                   |     |
   32975600 |   32986064 | Rdr |93  70  66  69  ab  83  27  58  f6                                       |  ok | SELECT_UID
   32987316 |   32990836 | Tag |08  b6  dd                                                               |     |
   35681344 |   35682400 | Rdr |26(7)                                                                    |     | REQA
   36775440 |   36776496 | Rdr |26(7)                                                                    |     | REQA
   37870272 |   37871328 | Rdr |26(7)                                                                    |     | REQA
   41620816 |   41621872 | Rdr |26(7)                                                                    |     | REQA

It seems that the problem is caused by some software issue with Flipper zero. Can I request to solve this issue and get the emulation works with my card and reader?

2 Likes

I think the development people can send a Bin to solve your problem, interesting reading.

1 Like

Thanks for your reply. But I haven’t received anything about this issue. Do you know anyone I can seek for help?

Hi,
I think I’m in the same situation for emulating an NFC Mifare Classic 1k Tag (office coffee machine tag). The reader does not react to Flipper emulation.
Unfortunately I have neither the skills nor the tools to document (as well as @Panda) the exchanges between my Flipper and the reader.
Waiting for a possible software correction in the next release.
Thank you all for your support and great job so far :slight_smile:
Enjoy!

1 Like

Hello, a friend of mine had this same problem, he went back to one of the versions of Flipper and it ended up working, I remembered your problem and came here to let you know, try to go back to a version and let me know if it worked.