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RfidResearchGroup / proxmark3

Iceman Fork - Proxmark3
http://www.icedev.se
GNU General Public License v3.0
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8 LEDs stay solid #437

Closed jp50pr closed 4 years ago

jp50pr commented 4 years ago

My proxmark3 RDv4 would not be recognized unless I held down the button when I plugged it into my computer. After some looking around I found a page for trouble shooting a possibly bricked proxmark. I tried "pm3-flash-bootrom" and it just seemed to hang for a few minutes. It (or maybe I slightly let go of the button by accident) disconnected. When I plugged it back in the LEDs stayed lit and now will not go off. Ive tried stand alone power and plugged into a computer. The proxmark is not seen at all now even when holding the button.

I clearly get this was my doing, perhaps I poke around more than needed, but this is a new issue for me and I have not found anything else similar yet.

doegox commented 4 years ago

All LEDs stay on even if you press the button while you're plugging it in? If yes, it means the bootloader is bricked too and you'll need to reflash via JTAG. But first, if it happened, could it be because of https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/md/Installation_Instructions/ModemManager-Must-Be-Discarded.md ?

jp50pr commented 4 years ago

Thank you for the assistance. I just double checked and the LEDs stay on while the button is pressed. I had not removed the ModemManager so I am guessing that is my issue. I do not have a JTAG so I will have to get one and try to go down that road once I get back home.

iceman1001 commented 4 years ago

If you released the button ever so slightly during a bootrom flash, you soft-bricked it. As @doegox say you will need to JTAG to recover it. Read the docs about JTAG and your device be back in no time. I will close this issue.