De Bricking Segger

JTAG Recovery Procedure

If for whatever reason the USB upgrade procedure (section above) failed and the Proxmark will no longer boot, you will need to load the bootrom on to the Proxmark using the JTAG interface. This procedure assumes that you have a Segger J-LINK (or clones) for the recovery process and J-link commander installed.

Plug both the Proxmark and the Segger J-LINK in to the computer. Attach the J-LINK to the Proxmark JTAG port.

Run J-link commander. Then:

exec device = AT91SAM7S256
exec EnableFlashDL
h
loadbin "C:\proxmark3\recovery\proxmark3_recovery.bin" 0x100000

that is it!

for flashing either the bootrom or firmware, these are the files and addresses:

bootrom.bin = 0x100000
fullimage.bin = 0x102000

Now un-plug the proxmark USB and JTAG and re-plug the Proxmark USB to the computer.