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HI guys.
I'm just trying to figure out the lf t55 config command and write commands for cloning my Pyramid tag.
Im not sure what LF t55 config command to use.
Heres the tag
Pyramid ID Found - BitLength: 26, FC: 9, Card: 33278 - Wiegand: 21303fd, Raw: 000101010101010101010161980efb6e
Checksum 6e passed
i wrote these to my t55 card and bricked it lol
proxmark3> lf t55xx write b 1 d 00010101
proxmark3> lf t55xx write b 2 d 01010101
proxmark3> lf t55xx write b 3 d 01010161
proxmark3> lf t55xx write b 0 d 980efb6e
what did i do wrong? and can i fix my t55 so i can still use it ?
Tried a lf t55 wipe and
All i get from the t5577 is No Known Tags Found!
Still learning guys. sorry if this seems basic. Any help is much appreciated.
Last edited by Apt-Get (2016-01-25 07:50:15)
you wrote a bad block 0...
and if you were unlucky you enabled the pwd bit.
Try writing a default block 0 with all zeros pwd. or a all 0xff pwd.
lf t55xx write b 0 d 0x00088040 p 0x00000000
or
lf t55xx write b 0 d 0x00088040 p 0xffffffff
still bad tag..
thats what i copied from the wipe command..
Im not heartbroken that i bricked a $1 tag no biggie.
What should the block0 should have been? Am i reading that raw data wrong?
Last edited by Apt-Get (2016-01-25 09:45:44)
what to do if checksum failed though ?
probably just means you have a tag that isn't the 26 bit format. example?
Pyramid ID Found - BitLength: 26, FC: 9, Card: 33278 - Wiegand: 21303fd, Raw: 000101010101010101010161980efb6e
Checksum 6e passed
lf t55xx write b 0 d 00107080
lf t55xx write b 1 d 00010101
lf t55xx write b 2 d 01010101
lf t55xx write b 3 d 01010161
lf t55xx write b 4 d 980efb6e
Last edited by Apt-Get (2016-01-26 10:32:58)
Flashed Marshmellows fork.
Prox/RFID mark3 RFID instrument
bootrom: /-suspect 2015-11-04 22:15:34
os: master/v1.1.0-657-gc4c3af7-suspect 2016-01-26 07:48:55
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/11/ 2 at 9: 8: 8
I drop a fob on the reader and run these commands.. they only work intermittently as you can see. i didn't even touch the fob. i just left it sitting on the antenna.
proxmark3> lf t55 det
Could not detect modulation automatically. Try setting it manually with 'lf t55xx config'
proxmark3> lf t55 det
Chip Type : T55x7
Modulation : ASK
Bit Rate : 5 - RF/64
Inverted : No
Offset : 33
Block0 : 0x00148040
proxmark3> lf t55 det
Could not detect modulation automatically. Try setting it manually with 'lf t55xx config'
You don't.
ok i get this from a dump after setting the config
proxmark3> lf t55 dump
Reading Page 0:
blk | hex data | binary
----+----------+---------------------------------
0 | FFFFFFFF | 11111111111111111111111111111111
1 | 00000000 | 00000000000000000000000000000000
2 | 00000000 | 00000000000000000000000000000000
3 | FFFFFFFF | 11111111111111111111111111111111
4 | 00000000 | 00000000000000000000000000000000
5 | FFFFFFFF | 11111111111111111111111111111111
6 | FFFFFFFF | 11111111111111111111111111111111
7 | FFFFFFFF | 11111111111111111111111111111111
Reading Page 1:
blk | hex data | binary
----+----------+---------------------------------
0 | 00000000 | 00000000000000000000000000000000
1 | FFFFFFFF | 11111111111111111111111111111111
2 | FFFFFFFF | 11111111111111111111111111111111
3 | FFFFFFFF | 11111111111111111111111111111111
if one of the mods wants to delete this thread thats ok with me. it got way off track. i ended up getting the pyramid tag working on a different t5577. the generic key fobs i have are not easy to read/write. i might just need more time with them in the config.
Heres the file. Im thinking this is a bad read.
https://www.dropbox.com/s/r775vyjjca1wng3/fob.pm3?dl=0
Here is the actual tag i bought.
http://www.phidgets.com/products.php?category=14&product_id=3916_0
Last edited by Apt-Get (2016-01-26 19:29:50)
After trial and error. Here is what lets me wipe and write to the these tags.
Thanks for all your Guidance Iceman. These tags were tough and will not respond to a t55 det or dump until you set this mod.
staying on topic i was able to clone a pyramid tag to both of these.
Prox/RFID mark3 RFID instrument
bootrom: /-suspect 2015-11-04 22:15:34
os: master/v1.1.0-657-gc4c3af7-suspect 2016-01-26 07:48:55
LF FPGA image built for 2s30vq100 on 2015/03/06 at 07:38:04
HF FPGA image built for 2s30vq100 on 2015/11/ 2 at 9: 8: 8
Chip Type : T55x7
Modulation : FSK2a
Bit Rate : 4 - RF/50
Inverted : Yes
Offset : 30
Last edited by Apt-Get (2016-01-27 00:59:22)