[Hackrf-dev] HackRF No Longer Visible & LEDs Showing Fault

[Dominic Spill]

On 4 March 2016 at 20:48, Michael Smith <radiomon10 at gmail.com> wrote:
> Dear Support;
>
>   I have had many hours of fun with the HackRF on Linux and Windows with no
> problems, but recently I have lost the use completely of the HackRF.
> Symptoms are as follows:
> 3V3, RF, TX led's constantly lit when connected to either Win7 or Linux. 1V8
> LED off, USB and RX very dim.
>  I have tried a DFU reset, reset and there is no change to the display.
>  I have tried to lsusb on Linux in both normal, and reset DFU mode, but no
> sign of DFU or Hack, and used to work on Windows too, but no more.

Instead of lsusb, could you check dmesg output on Linux?  I'm not sure
it will make a difference, but dmesg shows us what happens when the
device is connected, even if it failed to fully enumerate.

>   This appears to be a similar failure to a post in December [Hackrf-dev]
> HackRF One not detected anymore.

Yes, it certainly sounds similar.

> Is there anything I can do here to try to resurrect?

The issue in the previous thread was to do with the power supply on
the board (taking the 5V USB and dropping it to the voltage used by
the microcontroller).  It sounds as though you have a similar problem.

If you let me know (off list if you prefer) where you bought it, we'll
see what can be done to solve the problem.

Thanks,
  Dominic