Proxmark3 community

makoy

Contributor

Registered: 2021-01-25

Posts: 3

Write block error

Hello,

I have been doing different tests with latest versions like 4.15 and older like 4.9 but I am facing the same issue everytime.
I am not able to write to block 0 of a Gen 1A magic card
I can load a previously dumped file including block 0
I can also write to block 1,2,3 and the rest ones

But when I try to write block 0 it gives me the error

[usb] pm3 --> hf mf wrbl --blk 0 -a -k 010203040506 -d 3EC23F8F4C880400474514145D103508 --force
[=] Writing block no 0, key A - 010203040506
[=] data: 3E C2 3F 8F 4C 88 04 00 47 45 14 14 5D 10 35 08
[#] Cmd Error: 04
[#] Write block error
[-] ⛔ Write ( fail )
[?] Maybe access rights? Try specify keytype `hf mf wrbl -b ...` instead

But when writing to block 1 it is ok.

[usb] pm3 --> hf mf wrbl --blk 1 -a -k 010203040506 -d 8657DE6029E90247D4A8E6041806DE1A
[=] Writing block no 1, key A - 010203040506
[=] data: 86 57 DE 60 29 E9 02 47 D4 A8 E6 04 18 06 DE 1A
[+] Write ( ok )
[?] try `hf mf rdbl` to verify

Has anyone faced this problem?

Here the memory of the tag:

AA55C396AA0804000000000000000000
8657DE6029E90247D4A8E6041806DE1A
00000000000000000000000000000000
010203040506FF078069010203040506
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55
00000000000000000000000000000000
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00000000000000000000000000000000
E4AEC52CBB55FF078069E4AEC52CBB55

Kind Regards

BartMans

Contributor

Registered: 2022-12-16

Posts: 2

Re: Write block error

hi have you try with
hf mf csetuid XXXXXXXXXXXX ?
for change uid?

iceman

Administrator

Registered: 2013-04-25

Posts: 9,468

Website

Re: Write block error

You would need to use the c* commands for Gen1 tags in order to write to S0 / B0