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I flash bootrom, but at that time power lost, so when I re-connect the device by USB, there is no device connected.
It seems that ProxMark3 is fault in flash, how could I fix it?
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The only way to fix it is to reflash the bootloader using the JTAG interface.
You can build an LPT interface very cheap, just google for 'Wiggler schematic'
The flashing SW is in the Files section of www.proxmark.org
Hope this helps.
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