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#1 2014-05-19 12:41:20
- FYLF001
- Member
- Registered: 2014-05-19
- Posts: 3
T5577 Serial Number
Is there any way to either (a) change the serial number (T5577 Page 1 Block 1 and Block 2)
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#2 2014-05-19 12:58:10
- app_o1
- Contributor
- Registered: 2013-06-22
- Posts: 247
Re: T5577 Serial Number
The Block 1 and Block 2 of Page 1 are programmed and locked by Atmel during production testing.
If bits 1 to 4 of the Block 3, page 1 is set to "6", then the complete page cannot be overwritten by any test write command.
I think you can order T5577 with Block 3, page 1 set to 0x0000 0000
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#3 2014-05-20 10:50:46
- FYLF001
- Member
- Registered: 2014-05-19
- Posts: 3
Re: T5577 Serial Number
I mean I want to clone T5577‘s Serial Number
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#4 2014-05-21 13:53:54
- marshmellow
- Contributor
- From: US
- Registered: 2013-06-10
- Posts: 2,302
Re: T5577 Serial Number
it cannot be done as it is locked from the factory.
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#5 2014-10-08 21:03:55
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
- Website
Re: T5577 Serial Number
Question: Can the Pag1/Block2 (0-1-2) be read ?
Question: What is the test commands mentioned earlier?
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#6 2014-10-08 22:35:04
- marshmellow
- Contributor
- From: US
- Registered: 2013-06-10
- Posts: 2,302
Re: T5577 Serial Number
Page 1 Blocks 0-2 can all be read. Page 1 Block 2 can be programmed as well (0 and 1 are write protected from the chip factory). i haven't tried with the proxmark but i have another reader that can perform this read easily. though in code it often refers to page 1 block 2 as Block 10 (might just be that reader).
edit: they can be read as long as password mode is not set (or you have the password).
Last edited by marshmellow (2014-10-08 22:35:49)
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