r1 wrote:
Thanks Jack,
i've emailed humminbird support a few months ago, and they only say that's
not possible to convert it in international model with a software upload.
I ve opened the case of the fishfinder, and there 's no jumper . So i wonder
if it is possible to connect to the fishfinder with a software like
hyperterminal, and access to a expert mode, and so write a code whick change
between the us model and the international model.( i ve done it for a
alcatel ADSL modem to convert it to home model to pro model.). If somebody
here know a software to analyze the dialog of RS232 com port without locking
the com port, so another software can use it simultanously, please tell me.

For information, when i look the update software of the fishfinder, it seems
that it contains all langages.

Sounds like you're already well over my head on "hacking" that.

I started using the GPS Utility http://www.gpsu.co.uk/ a while back and
noticed that it will query the ID on my GPS Magellan and the unit
reports itself by a name and number (Magellan 330M, ID: 30).

I'm assuming that the ID is stored in hardware and can't be changed
easily. So maybe, if you could find the ID's for the two different
models you, could edit the update so that it will apply the
international update to your U.S. model. Like I say though, that is all
really over my head.

If the comms during the update are RS-232 can you use a simple hardware
monitor like the one shown here http://www.airborn.com.au/rs232.html to
capture and analyze the dialogue? I think there are software serial
port monitors also.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jacker at midmaine dot com