NFC microchip Read only unlock

Is there a way to cancel Read Only by locking the microchip due to an operation error?

Microchip is xNT NFC Chip

Definitely post the TagInfo data here (you can omit the ID if you want)… dngr.us/taginfo

understood. Is unlocking possible by sending chip data?

We won’t be able to help you through your problem unless we have more info. You can post the Taginfo scan, so we can check out the configuration bytes on your xNT, or you can describe the problem in more detail.

We’re unsure what you mean by this, which is why Amal’s first suggestion was to share a scan of the tag.

1 Like

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

Technologies supported:

ISO/IEC 14443-3 (Type A) compatible
ISO/IEC 14443-2 (Type A) compatible

Android technology information:

Tag description:

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

Detailed protocol information:

ID: 04:65:AF:12:FF:38:81
ATQA: 0x4400
SAK: 0x00

Memory content:

[00] * 04:65:AF 46 (UID0-UID2, BCC0)
[01] * 12:FF:38:81 (UID3-UID6)
[02] . 54 48 00 00 (BCC1, INT, LOCK0-LOCK1)
[03] . E1:10:6D:0F (OTP0-OTP3)
[04] . 03 1F D1 01 |…|
[05] . 1B 54 82 65 |
[06] . 6E FF FE 30
[07] . 00 39 00 30 |
[08] . 00 35 00 34 |
[09] . 00 36 00 39 |
[0A] . 00 35 00 33 |
[0B] . 00 33 00 38 |
[0C] . 00 FE 00 00 |…|
[0D] . 3D 6B 65 6E
[0E] . 67 6F 25 32 |
[0F] . 30 73 68 69 |
[10] ? 6E 64 61 26 |
[11] ? 69 6E 70 75 |inpu|
[12] ? 74 3D 74 65 |t=te|
[13] ? 78 74 26 74 |xt&t|
[14] ? 65 78 74 3D |ext=|
[15] ? 30 39 30 35 |
[16] ? 34 36 39 35 |
[17] ? 33 33 38 11 |
[18] ? 01 1B 54 82 |…T.|
[19] ? 65 6E FF FE |en…|
[1A] ? 30 00 39 00 |
[1B] ? 30 00 35 00 |
[1C] ? 34 00 36 00 |
[1D] ? 39 00 35 00 |
[1E] ? 33 00 33 00 |
[1F] ? 38 00 51 01 |
[20] ? 33 55 04 6C |3U.l|
[21] ? 61 6B 65 73 |akes|
[22] ? 69 64 65 6C |idel|
[23] ? 6C 61 6D 61 |lama|
[24] ? 2E 63 6F 6D |.com|
[25] ? 2F 61 70 70 |/app|
[26] ? 3F 68 6B 3D |?hk=|
[27] ? 6B 65 6E 67 |
[28] ? 6F 25 32 30 |
[29] ? 73 68 69 6E |
[2A] ? 64 61 25 32 |
[2B] ? 30 31 39 39 |
[2C] ? 35 31 31 30 |
[2D] ? 39 FE 00 00 |
[2E] ? 00 00 00 00 |…|
[2F] ? 00 00 00 00 |…|
[30] ? 00 00 00 00 |…|
[31] ? 00 00 00 00 |…|
[32] ? 00 00 00 00 |…|
[33] ? 00 00 00 00 |…|
[34] ? 00 00 00 00 |…|
[35] ? 00 00 00 00 |…|
[36] ? 00 00 00 00 |…|
[37] ? 00 00 00 00 |…|
[38] ? 00 00 00 00 |…|
[39] ? 00 00 00 00 |…|
[3A] ? 00 00 00 00 |…|
[3B] ? 00 00 00 00 |…|
[3C] ? 00 00 00 00 |…|
[3D] ? 00 00 00 00 |…|
[3E] ? 00 00 00 00 |…|
[3F] ? 00 00 00 00 |…|
[40] ? 00 00 00 00 |…|
[41] ? 00 00 00 00 |…|
[42] ? 00 00 00 00 |…|
[43] ? 00 00 00 00 |…|
[44] ? 00 00 00 00 |…|
[45] ? 00 00 00 00 |…|
[46] ? 00 00 00 00 |…|
[47] ? 00 00 00 00 |…|
[48] ? 00 00 00 00 |…|
[49] ? 00 00 00 00 |…|
[4A] ? 00 00 00 00 |…|
[4B] ? 00 00 00 00 |…|
[4C] ? 00 00 00 00 |…|
[4D] ? 00 00 00 00 |…|
[4E] ? 00 00 00 00 |…|
[4F] ? 00 00 00 00 |…|
[50] ? 00 00 00 00 |…|
[51] ? 00 00 00 00 |…|
[52] ? 00 00 00 00 |…|
[53] ? 00 00 00 00 |…|
[54] ? 00 00 00 00 |…|
[55] ? 00 00 00 00 |…|
[56] ? 00 00 00 00 |…|
[57] ? 00 00 00 00 |…|
[58] ? 00 00 00 00 |…|
[59] ? 00 00 00 00 |…|
[5A] ? 00 00 00 00 |…|
[5B] ? 00 00 00 00 |…|
[5C] ? 00 00 00 00 |…|
[5D] ? 00 00 00 00 |…|
[5E] ? 00 00 00 00 |…|
[5F] ? 00 00 00 00 |…|
[60] ? 00 00 00 00 |…|
[61] ? 00 00 00 00 |…|
[62] ? 00 00 00 00 |…|
[63] ? 00 00 00 00 |…|
[64] ? 00 00 00 00 |…|
[65] ? 00 00 00 00 |…|
[66] ? 00 00 00 00 |…|
[67] ? 00 00 00 00 |…|
[68] ? 00 00 00 00 |…|
[69] ? 00 00 00 00 |…|
[6A] ? 00 00 00 00 |…|
[6B] ? 00 00 00 00 |…|
[6C] ? 00 00 00 00 |…|
[6D] ? 00 00 00 00 |…|
[6E] ? 00 00 00 00 |…|
[6F] ? 00 00 00 00 |…|
[70] ? 00 00 00 00 |…|
[71] ? 00 00 00 00 |…|
[72] ? 00 00 00 00 |…|
[73] ? 00 00 00 00 |…|
[74] ? 00 00 00 00 |…|
[75] ? 00 00 00 00 |…|
[76] ? 00 00 00 00 |…|
[77] ? 00 00 00 00 |…|
[78] ? 00 00 00 00 |…|
[79] ? 00 00 00 00 |…|
[7A] ? 00 00 00 00 |…|
[7B] ? 00 00 00 00 |…|
[7C] ? 00 00 00 00 |…|
[7D] ? 00 00 00 00 |…|
[7E] ? 00 00 00 00 |…|
[7F] ? 00 00 00 00 |…|
[80] ? 00 00 00 00 |…|
[81] ? 00 00 00 00 |…|
[82] ? 00 00 00 00 |…|
[83] ? 00 00 00 00 |…|
[84] ? 00 00 00 00 |…|
[85] ? 00 00 00 00 |…|
[86] ? 00 00 00 00 |…|
[87] ? 00 00 00 00 |…|
[88] ? 00 00 00 00 |…|
[89] ? 00 00 00 00 |…|
[8A] ? 00 00 00 00 |…|
[8B] ? 00 00 00 00 |…|
[8C] ? 00 00 00 00 |…|
[8D] ? 00 00 00 00 |…|
[8E] ? 00 00 00 00 |…|
[8F] ? 00 00 00 00 |…|
[90] ? 00 00 00 00 |…|
[91] ? 00 00 00 00 |…|
[92] ? 00 00 00 00 |…|
[93] ? 00 00 00 00 |…|
[94] ? 00 00 00 00 |…|
[95] ? 00 00 00 00 |…|
[96] ? 00 00 00 00 |…|
[97] ? 00 00 00 00 |…|
[98] ? 00 00 00 00 |…|
[99] ? 00 00 00 00 |…|
[9A] ? 00 00 00 00 |…|
[9B] ? 00 00 00 00 |…|

<aborted: read error on page 156>

So your tag isn’t locked… the 00 00 data are lock bytes with one time programmable bits, and they aren’t set.

2 Likes

What do the photos mean?
Same for other apps
Cannot write.

Is this error returned when you try to read memory from your chip?

The end of my read is this(there’s roughly 65recods between where your’s stops and mine):

[ 00:00:00:00 ] Addr. DF : DATA
[ 00:00:00:00 ] Addr. E0 : DATA
[ 4E:45:78:54 ] Addr. E1 : DATA
[ 00:00:7F:BD ] Addr. E2 : LOCK2 - LOCK4
[ 04:00:00:E3 ] Addr. E3 : CFG 0 (MIRROR / AUTH0)
[ 00:05:00:00 ] Addr. E4 : CFG 1 (ACCESS)
[ 00:00:00:00 ] Addr. E5 : PWD0 - PWD3
[ 00:00:00:00 ] Addr. E6 : PACK0 - PACK1
1 Like

No. Displayed when writing.

You may have checked the Lock Tag in the photo above.

If checked, can I unlock?

can you try these apps and let us know your results
Tag Writer
Tag Info
NFC Tools
NFC Tools Pro

Don’t check the lock option. As it states, it’s permanent and you won’t be able to change it in future.

No, that’s why the warning is telling you you can’t unlock the tag if that is checked. You may be able to recover it with a Proxmark, but I can’t confirm that, you’d have to wait for someone else to chime in.

How did you get your tag readout that you posted here?
The readout you posted has an error at the bottom, which may be contributing to the issue. There’s Dynamic lock bytes stored in the last page or so of the chip that I’m not seeing in your dump.

Here’s a quote from one of Amal’s posts explaining this:

All apps are listed as read only.
Unlock by using Proxmark?

If checked, can I unlock?

I may have checked

The only way to tell for sure is another scan from TagInfo (dngr.us/taginfo)… try to get the full scan (no aborted error).

1 Like

If locked permanently, can other writing be done with the same tip?

FULL SCAN ------------------------------

Technologies supported:

ISO/IEC 14443-3 (Type A) compatible
ISO/IEC 14443-2 (Type A) compatible

Android technology information:

Tag description:

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

Detailed protocol information:

ID: 04:65:AF:12:FF:38:81
ATQA: 0x4400
SAK: 0x00

Memory content:

[00] * 04:65:AF 46 (UID0-UID2, BCC0)
[01] * 12:FF:38:81 (UID3-UID6)
[02] . 54 48 00 00 (BCC1, INT, LOCK0-LOCK1)
[03] . E1:10:6D:0F (OTP0-OTP3)
[04] . 03 1F D1 01 |…|
[05] . 1B 54 82 65 |.T.e|
[06] . 6E FF FE 30 |n…0|
[07] . 00 39 00 30 |.9.0|
[08] . 00 35 00 34 |.5.4|
[09] . 00 36 00 39 |.6.9|
[0A] . 00 35 00 33 |.5.3|
[0B] . 00 33 00 38 |.3.8|
[0C] . 00 FE 00 00 |…|
[0D] . 3D 6B 65 6E |=ken|
[0E] . 67 6F 25 32 |go%2|
[0F] . 30 73 68 69 |0shi|
[10] . 6E 64 61 26 |nda&|
[11] . 69 6E 70 75 |inpu|
[12] . 74 3D 74 65 |t=te|
[13] . 78 74 26 74 |xt&t|
[14] . 65 78 74 3D |ext=|
[15] . 30 39 30 35 |0905|
[16] . 34 36 39 35 |4695|
[17] . 33 33 38 11 |338.|
[18] . 01 1B 54 82 |…T.|
[19] . 65 6E FF FE |en…|
[1A] . 30 00 39 00 |0.9.|
[1B] . 30 00 35 00 |0.5.|
[1C] . 34 00 36 00 |4.6.|
[1D] . 39 00 35 00 |9.5.|
[1E] . 33 00 33 00 |3.3.|
[1F] . 38 00 51 01 |8.Q.|
[20] . 33 55 04 6C |3U.l|
[21] . 61 6B 65 73 |akes|
[22] . 69 64 65 6C |idel|
[23] . 6C 61 6D 61 |lama|
[24] . 2E 63 6F 6D |.com|
[25] . 2F 61 70 70 |/app|
[26] . 3F 68 6B 3D |?hk=|
[27] . 6B 65 6E 67 |keng|
[28] . 6F 25 32 30 |o%20|
[29] . 73 68 69 6E |shin|
[2A] . 64 61 25 32 |da%2|
[2B] . 30 31 39 39 |0199|
[2C] . 35 31 31 30 |5110|
[2D] . 39 FE 00 00 |9…|
[2E] . 00 00 00 00 |…|
[2F] . 00 00 00 00 |…|
[30] . 00 00 00 00 |…|
[31] . 00 00 00 00 |…|
[32] . 00 00 00 00 |…|
[33] . 00 00 00 00 |…|
[34] . 00 00 00 00 |…|
[35] . 00 00 00 00 |…|
[36] . 00 00 00 00 |…|
[37] . 00 00 00 00 |…|
[38] . 00 00 00 00 |…|
[39] . 00 00 00 00 |…|
[3A] . 00 00 00 00 |…|
[3B] . 00 00 00 00 |…|
[3C] . 00 00 00 00 |…|
[3D] . 00 00 00 00 |…|
[3E] . 00 00 00 00 |…|
[3F] . 00 00 00 00 |…|
[40] . 00 00 00 00 |…|
[41] . 00 00 00 00 |…|
[42] . 00 00 00 00 |…|
[43] . 00 00 00 00 |…|
[44] . 00 00 00 00 |…|
[45] . 00 00 00 00 |…|
[46] . 00 00 00 00 |…|
[47] . 00 00 00 00 |…|
[48] . 00 00 00 00 |…|
[49] . 00 00 00 00 |…|
[4A] . 00 00 00 00 |…|
[4B] . 00 00 00 00 |…|
[4C] . 00 00 00 00 |…|
[4D] . 00 00 00 00 |…|
[4E] . 00 00 00 00 |…|
[4F] . 00 00 00 00 |…|
[50] . 00 00 00 00 |…|
[51] . 00 00 00 00 |…|
[52] . 00 00 00 00 |…|
[53] . 00 00 00 00 |…|
[54] . 00 00 00 00 |…|
[55] . 00 00 00 00 |…|
[56] . 00 00 00 00 |…|
[57] . 00 00 00 00 |…|
[58] . 00 00 00 00 |…|
[59] . 00 00 00 00 |…|
[5A] . 00 00 00 00 |…|
[5B] . 00 00 00 00 |…|
[5C] . 00 00 00 00 |…|
[5D] . 00 00 00 00 |…|
[5E] . 00 00 00 00 |…|
[5F] . 00 00 00 00 |…|
[60] . 00 00 00 00 |…|
[61] . 00 00 00 00 |…|
[62] . 00 00 00 00 |…|
[63] . 00 00 00 00 |…|
[64] . 00 00 00 00 |…|
[65] . 00 00 00 00 |…|
[66] . 00 00 00 00 |…|
[67] . 00 00 00 00 |…|
[68] . 00 00 00 00 |…|
[69] . 00 00 00 00 |…|
[6A] . 00 00 00 00 |…|
[6B] . 00 00 00 00 |…|
[6C] . 00 00 00 00 |…|
[6D] . 00 00 00 00 |…|
[6E] . 00 00 00 00 |…|
[6F] . 00 00 00 00 |…|
[70] . 00 00 00 00 |…|
[71] . 00 00 00 00 |…|
[72] . 00 00 00 00 |…|
[73] . 00 00 00 00 |…|
[74] . 00 00 00 00 |…|
[75] . 00 00 00 00 |…|
[76] . 00 00 00 00 |…|
[77] . 00 00 00 00 |…|
[78] . 00 00 00 00 |…|
[79] . 00 00 00 00 |…|
[7A] . 00 00 00 00 |…|
[7B] . 00 00 00 00 |…|
[7C] . 00 00 00 00 |…|
[7D] . 00 00 00 00 |…|
[7E] . 00 00 00 00 |…|
[7F] . 00 00 00 00 |…|
[80] . 00 00 00 00 |…|
[81] . 00 00 00 00 |…|
[82] . 00 00 00 00 |…|
[83] . 00 00 00 00 |…|
[84] . 00 00 00 00 |…|
[85] . 00 00 00 00 |…|
[86] . 00 00 00 00 |…|
[87] . 00 00 00 00 |…|
[88] . 00 00 00 00 |…|
[89] . 00 00 00 00 |…|
[8A] . 00 00 00 00 |…|
[8B] . 00 00 00 00 |…|
[8C] . 00 00 00 00 |…|
[8D] . 00 00 00 00 |…|
[8E] . 00 00 00 00 |…|
[8F] . 00 00 00 00 |…|
[90] . 00 00 00 00 |…|
[91] . 00 00 00 00 |…|
[92] . 00 00 00 00 |…|
[93] . 00 00 00 00 |…|
[94] . 00 00 00 00 |…|
[95] . 00 00 00 00 |…|
[96] . 00 00 00 00 |…|
[97] . 00 00 00 00 |…|
[98] . 00 00 00 00 |…|
[99] . 00 00 00 00 |…|
[9A] . 00 00 00 00 |…|
[9B] . 00 00 00 00 |…|
[9C] . 00 00 00 00 |…|
[9D] . 00 00 00 00 |…|
[9E] . 00 00 00 00 |…|
[9F] . 00 00 00 00 |…|
[A0] . 00 00 00 00 |…|
[A1] . 00 00 00 00 |…|
[A2] . 00 00 00 00 |…|
[A3] . 00 00 00 00 |…|
[A4] . 00 00 00 00 |…|
[A5] . 00 00 00 00 |…|
[A6] . 00 00 00 00 |…|
[A7] . 00 00 00 00 |…|
[A8] . 00 00 00 00 |…|
[A9] . 00 00 00 00 |…|
[AA] . 00 00 00 00 |…|
[AB] . 00 00 00 00 |…|
[AC] . 00 00 00 00 |…|
[AD] . 00 00 00 00 |…|
[AE] . 00 00 00 00 |…|
[AF] . 00 00 00 00 |…|
[B0] . 00 00 00 00 |…|
[B1] . 00 00 00 00 |…|
[B2] . 00 00 00 00 |…|
[B3] . 00 00 00 00 |…|
[B4] . 00 00 00 00 |…|
[B5] . 00 00 00 00 |…|
[B6] . 00 00 00 00 |…|
[B7] . 00 00 00 00 |…|
[B8] . 00 00 00 00 |…|
[B9] . 00 00 00 00 |…|
[BA] . 00 00 00 00 |…|
[BB] . 00 00 00 00 |…|
[BC] . 00 00 00 00 |…|
[BD] . 00 00 00 00 |…|
[BE] . 00 00 00 00 |…|
[BF] . 00 00 00 00 |…|
[C0] . 00 00 00 00 |…|
[C1] . 00 00 00 00 |…|
[C2] . 00 00 00 00 |…|
[C3] . 00 00 00 00 |…|
[C4] . 00 00 00 00 |…|
[C5] . 00 00 00 00 |…|
[C6] . 00 00 00 00 |…|
[C7] . 00 00 00 00 |…|
[C8] . 00 00 00 00 |…|
[C9] . 00 00 00 00 |…|
[CA] . 00 00 00 00 |…|
[CB] . 00 00 00 00 |…|
[CC] . 00 00 00 00 |…|
[CD] . 00 00 00 00 |…|
[CE] . 00 00 00 00 |…|
[CF] . 00 00 00 00 |…|
[D0] . 00 00 00 00 |…|
[D1] . 00 00 00 00 |…|
[D2] . 00 00 00 00 |…|
[D3] . 00 00 00 00 |…|
[D4] . 00 00 00 00 |…|
[D5] . 00 00 00 00 |…|
[D6] . 00 00 00 00 |…|
[D7] . 00 00 00 00 |…|
[D8] . 00 00 00 00 |…|
[D9] . 00 00 00 00 |…|
[DA] . 00 00 00 00 |…|
[DB] . 00 00 00 00 |…|
[DC] . 00 00 00 00 |…|
[DD] . 00 00 00 00 |…|
[DE] . 00 00 00 00 |…|
[DF] . 00 00 00 00 |…|
[E0] . 00 00 00 00 |…|
[E1] . 00 00 00 00 |…|
[E2] . 00 00 00 BD (LOCK2-LOCK4, CHK)
[E3] . 04 00 00 FF (CFG, MIRROR, AUTH0)
[E4] . 00 05 – -- (ACCESS)
[E5] +P FF FF FF FF (PWD0-PWD3)
[E6] +P 00 00 – -- (PACK0-PACK1)

*:locked & blocked, x:locked,
+:blocked, .:un(b)locked, ?:unknown
r:readable (write-protected),
p:password protected, -:write-only
P:password protected write-only


This might be a silly question but is something you need to do to your NFC chip like first set up or can you just right away pull up your NFC tools app and write to it? Password or is there anything that no buddy can just use there tool app and write to my chip?

I did a scan.
Do you know the cause?

FULL SCAN ------------------------------

Technologies supported:

ISO/IEC 14443-3 (Type A) compatible
ISO/IEC 14443-2 (Type A) compatible

Android technology information:

Tag description:

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

Detailed protocol information:

ID: 04:65:AF:12:FF:38:81
ATQA: 0x4400
SAK: 0x00

Memory content:

[00] * 04:65:AF 46 (UID0-UID2, BCC0)
[01] * 12:FF:38:81 (UID3-UID6)
[02] . 54 48 00 00 (BCC1, INT, LOCK0-LOCK1)
[03] . E1:10:6D:0F (OTP0-OTP3)
[04] . 03 1F D1 01 |…|
[05] . 1B 54 82 65 |.T.e|
[06] . 6E FF FE 30 |n…0|
[07] . 00 39 00 30 |.9.0|
[08] . 00 35 00 34 |.5.4|
[09] . 00 36 00 39 |.6.9|
[0A] . 00 35 00 33 |.5.3|
[0B] . 00 33 00 38 |.3.8|
[0C] . 00 FE 00 00 |…|
[0D] . 3D 6B 65 6E |=ken|
[0E] . 67 6F 25 32 |go%2|
[0F] . 30 73 68 69 |0shi|
[10] . 6E 64 61 26 |nda&|
[11] . 69 6E 70 75 |inpu|
[12] . 74 3D 74 65 |t=te|
[13] . 78 74 26 74 |xt&t|
[14] . 65 78 74 3D |ext=|
[15] . 30 39 30 35 |0905|
[16] . 34 36 39 35 |4695|
[17] . 33 33 38 11 |338.|
[18] . 01 1B 54 82 |…T.|
[19] . 65 6E FF FE |en…|
[1A] . 30 00 39 00 |0.9.|
[1B] . 30 00 35 00 |0.5.|
[1C] . 34 00 36 00 |4.6.|
[1D] . 39 00 35 00 |9.5.|
[1E] . 33 00 33 00 |3.3.|
[1F] . 38 00 51 01 |8.Q.|
[20] . 33 55 04 6C |3U.l|
[21] . 61 6B 65 73 |akes|
[22] . 69 64 65 6C |idel|
[23] . 6C 61 6D 61 |lama|
[24] . 2E 63 6F 6D |.com|
[25] . 2F 61 70 70 |/app|
[26] . 3F 68 6B 3D |?hk=|
[27] . 6B 65 6E 67 |keng|
[28] . 6F 25 32 30 |o%20|
[29] . 73 68 69 6E |shin|
[2A] . 64 61 25 32 |da%2|
[2B] . 30 31 39 39 |0199|
[2C] . 35 31 31 30 |5110|
[2D] . 39 FE 00 00 |9…|
[2E] . 00 00 00 00 |…|
[2F] . 00 00 00 00 |…|
[30] . 00 00 00 00 |…|
[31] . 00 00 00 00 |…|
[32] . 00 00 00 00 |…|
[33] . 00 00 00 00 |…|
[34] . 00 00 00 00 |…|
[35] . 00 00 00 00 |…|
[36] . 00 00 00 00 |…|
[37] . 00 00 00 00 |…|
[38] . 00 00 00 00 |…|
[39] . 00 00 00 00 |…|
[3A] . 00 00 00 00 |…|
[3B] . 00 00 00 00 |…|
[3C] . 00 00 00 00 |…|
[3D] . 00 00 00 00 |…|
[3E] . 00 00 00 00 |…|
[3F] . 00 00 00 00 |…|
[40] . 00 00 00 00 |…|
[41] . 00 00 00 00 |…|
[42] . 00 00 00 00 |…|
[43] . 00 00 00 00 |…|
[44] . 00 00 00 00 |…|
[45] . 00 00 00 00 |…|
[46] . 00 00 00 00 |…|
[47] . 00 00 00 00 |…|
[48] . 00 00 00 00 |…|
[49] . 00 00 00 00 |…|
[4A] . 00 00 00 00 |…|
[4B] . 00 00 00 00 |…|
[4C] . 00 00 00 00 |…|
[4D] . 00 00 00 00 |…|
[4E] . 00 00 00 00 |…|
[4F] . 00 00 00 00 |…|
[50] . 00 00 00 00 |…|
[51] . 00 00 00 00 |…|
[52] . 00 00 00 00 |…|
[53] . 00 00 00 00 |…|
[54] . 00 00 00 00 |…|
[55] . 00 00 00 00 |…|
[56] . 00 00 00 00 |…|
[57] . 00 00 00 00 |…|
[58] . 00 00 00 00 |…|
[59] . 00 00 00 00 |…|
[5A] . 00 00 00 00 |…|
[5B] . 00 00 00 00 |…|
[5C] . 00 00 00 00 |…|
[5D] . 00 00 00 00 |…|
[5E] . 00 00 00 00 |…|
[5F] . 00 00 00 00 |…|
[60] . 00 00 00 00 |…|
[61] . 00 00 00 00 |…|
[62] . 00 00 00 00 |…|
[63] . 00 00 00 00 |…|
[64] . 00 00 00 00 |…|
[65] . 00 00 00 00 |…|
[66] . 00 00 00 00 |…|
[67] . 00 00 00 00 |…|
[68] . 00 00 00 00 |…|
[69] . 00 00 00 00 |…|
[6A] . 00 00 00 00 |…|
[6B] . 00 00 00 00 |…|
[6C] . 00 00 00 00 |…|
[6D] . 00 00 00 00 |…|
[6E] . 00 00 00 00 |…|
[6F] . 00 00 00 00 |…|
[70] . 00 00 00 00 |…|
[71] . 00 00 00 00 |…|
[72] . 00 00 00 00 |…|
[73] . 00 00 00 00 |…|
[74] . 00 00 00 00 |…|
[75] . 00 00 00 00 |…|
[76] . 00 00 00 00 |…|
[77] . 00 00 00 00 |…|
[78] . 00 00 00 00 |…|
[79] . 00 00 00 00 |…|
[7A] . 00 00 00 00 |…|
[7B] . 00 00 00 00 |…|
[7C] . 00 00 00 00 |…|
[7D] . 00 00 00 00 |…|
[7E] . 00 00 00 00 |…|
[7F] . 00 00 00 00 |…|
[80] . 00 00 00 00 |…|
[81] . 00 00 00 00 |…|
[82] . 00 00 00 00 |…|
[83] . 00 00 00 00 |…|
[84] . 00 00 00 00 |…|
[85] . 00 00 00 00 |…|
[86] . 00 00 00 00 |…|
[87] . 00 00 00 00 |…|
[88] . 00 00 00 00 |…|
[89] . 00 00 00 00 |…|
[8A] . 00 00 00 00 |…|
[8B] . 00 00 00 00 |…|
[8C] . 00 00 00 00 |…|
[8D] . 00 00 00 00 |…|
[8E] . 00 00 00 00 |…|
[8F] . 00 00 00 00 |…|
[90] . 00 00 00 00 |…|
[91] . 00 00 00 00 |…|
[92] . 00 00 00 00 |…|
[93] . 00 00 00 00 |…|
[94] . 00 00 00 00 |…|
[95] . 00 00 00 00 |…|
[96] . 00 00 00 00 |…|
[97] . 00 00 00 00 |…|
[98] . 00 00 00 00 |…|
[99] . 00 00 00 00 |…|
[9A] . 00 00 00 00 |…|
[9B] . 00 00 00 00 |…|
[9C] . 00 00 00 00 |…|
[9D] . 00 00 00 00 |…|
[9E] . 00 00 00 00 |…|
[9F] . 00 00 00 00 |…|
[A0] . 00 00 00 00 |…|
[A1] . 00 00 00 00 |…|
[A2] . 00 00 00 00 |…|
[A3] . 00 00 00 00 |…|
[A4] . 00 00 00 00 |…|
[A5] . 00 00 00 00 |…|
[A6] . 00 00 00 00 |…|
[A7] . 00 00 00 00 |…|
[A8] . 00 00 00 00 |…|
[A9] . 00 00 00 00 |…|
[AA] . 00 00 00 00 |…|
[AB] . 00 00 00 00 |…|
[AC] . 00 00 00 00 |…|
[AD] . 00 00 00 00 |…|
[AE] . 00 00 00 00 |…|
[AF] . 00 00 00 00 |…|
[B0] . 00 00 00 00 |…|
[B1] . 00 00 00 00 |…|
[B2] . 00 00 00 00 |…|
[B3] . 00 00 00 00 |…|
[B4] . 00 00 00 00 |…|
[B5] . 00 00 00 00 |…|
[B6] . 00 00 00 00 |…|
[B7] . 00 00 00 00 |…|
[B8] . 00 00 00 00 |…|
[B9] . 00 00 00 00 |…|
[BA] . 00 00 00 00 |…|
[BB] . 00 00 00 00 |…|
[BC] . 00 00 00 00 |…|
[BD] . 00 00 00 00 |…|
[BE] . 00 00 00 00 |…|
[BF] . 00 00 00 00 |…|
[C0] . 00 00 00 00 |…|
[C1] . 00 00 00 00 |…|
[C2] . 00 00 00 00 |…|
[C3] . 00 00 00 00 |…|
[C4] . 00 00 00 00 |…|
[C5] . 00 00 00 00 |…|
[C6] . 00 00 00 00 |…|
[C7] . 00 00 00 00 |…|
[C8] . 00 00 00 00 |…|
[C9] . 00 00 00 00 |…|
[CA] . 00 00 00 00 |…|
[CB] . 00 00 00 00 |…|
[CC] . 00 00 00 00 |…|
[CD] . 00 00 00 00 |…|
[CE] . 00 00 00 00 |…|
[CF] . 00 00 00 00 |…|
[D0] . 00 00 00 00 |…|
[D1] . 00 00 00 00 |…|
[D2] . 00 00 00 00 |…|
[D3] . 00 00 00 00 |…|
[D4] . 00 00 00 00 |…|
[D5] . 00 00 00 00 |…|
[D6] . 00 00 00 00 |…|
[D7] . 00 00 00 00 |…|
[D8] . 00 00 00 00 |…|
[D9] . 00 00 00 00 |…|
[DA] . 00 00 00 00 |…|
[DB] . 00 00 00 00 |…|
[DC] . 00 00 00 00 |…|
[DD] . 00 00 00 00 |…|
[DE] . 00 00 00 00 |…|
[DF] . 00 00 00 00 |…|
[E0] . 00 00 00 00 |…|
[E1] . 00 00 00 00 |…|
[E2] . 00 00 00 BD (LOCK2-LOCK4, CHK)
[E3] . 04 00 00 FF (CFG, MIRROR, AUTH0)
[E4] . 00 05 – -- (ACCESS)
[E5] +P FF FF FF FF (PWD0-PWD3)
[E6] +P 00 00 – -- (PACK0-PACK1)

*:locked & blocked, x:locked,
+:blocked, .:un(b)locked, ?:unknown
r:readable (write-protected),
p:password protected, -:write-only
P:password protected write-only


The scan shows no lock bits are set… so this is probably a TLV issue or something like that. Use TagWriter, go to erase tag, choose format option;

After that you should be able to write again.