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#1 2015-05-18 05:26:53
- Hobbes
- Member
- Registered: 2015-05-08
- Posts: 3
Can't write on proxmark.
I am unable to write using pm3.
hw ver below
proxmark3> hw ver
#db# Prox/RFID mark3 RFID instrument
#db# bootrom: /-suspect 2015-04-02 15:12:04
#db# os: /-suspect 2015-04-02 15:12:11
#db# LF FPGA image built on 2015/03/06 at 07:38:04
uC: AT91SAM7S256 Rev A
Embedded Processor: ARM7TDMI
Nonvolatile Program Memory Size: 256K bytes
Second Nonvolatile Program Memory Size: None
Internal SRAM Size: 256K bytes
Architecture Identifier: AT91SAM7Sxx Series
Nonvolatile Program Memory Type: Embedded Flash Memory
proxmark3>
hw tune:
proxmark3> hw tune
Measuring antenna characteristics, please wait.........
# LF antenna: 12.65 V @ 125.00 kHz
# LF antenna: 25.57 V @ 134.00 kHz
# LF optimal: 25.57 V @ 133.33 kHz
# HF antenna: 0.81 V @ 13.56 MHz
# Your HF antenna is unusable.
Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.
I use the lf search it finds the tag but when I write on a new blank and use the lf search again the new blank is still empty and contains no written code.
Any idea what is wrong with my PM3?
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#2 2015-05-18 05:42:48
- Hobbes
- Member
- Registered: 2015-05-08
- Posts: 3
Re: Can't write on proxmark.
FYI,
I'm also writing multiple tags (all kinds found under LF search).
But each time I write them it would say done in the PM3.
When I LF search again, the blank contains no data.
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#3 2015-05-18 07:33:06
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,538
- Website
Re: Can't write on proxmark.
Not knowing what tag you are trying to write to, but if its a t5577 kind of tag then it might have a password set. There is no feedback from the protocol about writing-failure, so it will only show when you try to read back the data.
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