Can't write data on FlexNT

I’m quite sure I redacted the UID right even tho I’m not using it for anything.

** TagInfo scan (version 4.24.7) 2021-07-10 01:38:50 **
Report Type: External

– IC INFO ------------------------------

IC manufacturer:

Unknown Manufacturer

IC type:

Unknown Mifare class IC, possibly cloned

Applications:

Multi-application card
Card publisher sector: 1

  • NFC applications
    • NXP Semiconductors

– NDEF ------------------------------

No NDEF data storage populated:

– EXTRA ------------------------------

Memory size:

1 kB

  • 16 sectors, with 4 blocks per sector
  • 64 blocks, with 16 bytes per block

Application Directory:

CRC sector 0: OK
Application classes:

DIR NDEF NDEF NDEF NDEF NDEF NDEF NDEF
NDEF NDEF NDEF NDEF NDEF NDEF NDEF NDEF

– FULL SCAN ------------------------------

Technologies supported:

ISO/IEC 14443-3 (Type A) compatible

Android technology information:

Tag description:

  • TAG: Tech [android.nfc.tech.NfcA, android.nfc.tech.MifareClassic, android.nfc.tech.NdefFormatable]
  • Maximum transceive length: 253 bytes
  • Default maximum transceive time-out: 618 ms

Detailed protocol information:

ID: ID
ATQA: 0x0400
SAK: 0x08

Memory content:

Sector 0 (0x00)
[00] r-- UID |…m4b…bcdefghi|
[01] rW- 14 01 03 E1 03 E1 03 E1 03 E1 03 E1 03 E1 03 E1 |…|
[02] rW- 03 E1 03 E1 03 E1 03 E1 03 E1 03 E1 03 E1 03 E1 |…|
[03] WXW A0:A1:A2:A3:A4:A5 78:77:88 C1 XX:XX:XX:XX:XX:XX
MAD access key (unknown key)

Sector 1 (0x01)
[04] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[05] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[06] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[07] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 2 (0x02)
[08] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[09] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[0A] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[0B] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 3 (0x03)
[0C] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[0D] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[0E] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[0F] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 4 (0x04)
[10] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[11] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[12] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[13] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 5 (0x05)
[14] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[15] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[16] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[17] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 6 (0x06)
[18] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[19] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[1A] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[1B] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 7 (0x07)
[1C] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[1D] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[1E] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[1F] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 8 (0x08)
[20] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[21] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[22] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[23] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 9 (0x09)
[24] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[25] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[26] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[27] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 10 (0x0A)
[28] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[29] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[2A] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[2B] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 11 (0x0B)
[2C] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[2D] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[2E] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[2F] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 12 (0x0C)
[30] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[31] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[32] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[33] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 13 (0x0D)
[34] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[35] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[36] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[37] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 14 (0x0E)
[38] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[39] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[3A] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[3B] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

Sector 15 (0x0F)
[3C] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[3D] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[3E] rwi 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |…|
[3F] WXW XX:XX:XX:XX:XX:XX 7F:07:88 40 FF:FF:FF:FF:FF:FF
(unknown key) Factory default key

r/R=read, w/W=write, i/I=increment,
d=decr/transfer/restore, x=r+w, X=R+W
data block: r/w/i/d:key A|B, R/W/I:key B only,
I/i implies d, *=value block
trailer (order: key A, AC, key B): r/w:key A,
W:key B, R:key A|B, (r)=readable key
AC: W implies R+r, R implies r