[chbot] Reprogramming ESM-1000 displays at Monday's meeting.

[Robin Gilks]

> I have come up with a procedure to enable the ISP port on the displays we
> got at the last meeting. This then allows unrestricted reprogramming of
> the
> device. I have had success with all three displays I tried it on.
>
> The connection between the reset IC and the MCU must be temporarily
> broken.
> I just removed (and later replaced) the reset IC but there are other
> options we can explore. Cutting the reset pin directly on the MCU may
> work.
> The relevant trace on the PCB is somewhat obscured by the smart card
> socket.
>
> I will bring my gear along to the Monday meeting for anyone who wants to
> unlock their display. It would be good to get an idea of how many there
> are
> to do - can you please respond if you want to do this to your display. It
> would be helpful if you could prepare by opening the case and removing the
> four T5 screws holding the main PCB down. There is no need to remove the
> LCD.
>
> Spencer

I have 3 that it would be good to unlock...

-- 
Robin Gilks