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Burak

Contributor

Registered: 2021-10-06

Posts: 16

[SOLVED] Can't Write to T55x7

Hello,

I am trying to write any data on T55x7 however I have no luck.

my lf t55 detect:

[usb] pm3 --> lf t55x detect
[=]  Chip type......... T55x7
[=]  Modulation........ DIRECT/NRZ
[=]  Bit rate.......... 1 - RF/16
[=]  Inverted.......... No
[=]  Offset............ 33
[=]  Seq. terminator... No
[=]  Block0............ 80040012 (auto detect)
[=]  Downlink mode..... default/fixed bit length
[=]  Password set...... No

and I read block 0 and 1 before I write:

 [usb] pm3 --> lf t55x read -b 0
[+] Reading Page 0:
[+] blk | hex data | binary                           | ascii
[+] ----+----------+----------------------------------+-------
[+]  00 | 80040012 | 10000000000001000000000000010010 | ....
[usb] pm3 --> lf t55x read -b 1
[+] Reading Page 0:
[+] blk | hex data | binary                           | ascii
[+] ----+----------+----------------------------------+-------
[+]  01 | 80040012 | 10000000000001000000000000010010 | .... 

I execute "lf t55x write -b 0 -d 11223348" and lf t55x write -b 1 -d 11223348

[usb] pm3 --> lf t55x write -b 1 -d 11223348
[=] Writing page 0  block: 01  data: 0x11223348
[usb] pm3 --> lf t55x write -b 0 -d 11223348
[=] Writing page 0  block: 00  data: 0x11223348

And reading block 0 and block 1 again

[usb] pm3 --> lf t55x read -b 0
[+] Reading Page 0:
[+] blk | hex data | binary                           | ascii
[+] ----+----------+----------------------------------+-------
[+]  00 | 80040012 | 10000000000001000000000000010010 | ....
[usb] pm3 --> lf t55x read -b 1
[+] Reading Page 0:
[+] blk | hex data | binary                           | ascii
[+] ----+----------+----------------------------------+-------
[+]  01 | 80040012 | 10000000000001000000000000010010 | ....

Nothing changes any idea or suggestions?

Thanks,

Last edited by Burak (2021-11-12 15:19:28)