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gp340 upgrading

Posted: Tue Dec 02, 2008 11:42 am
by jars1966
I´ve built this interface :
http://dw.ham.dmz.ro:8080/downloads/mot ... 232rib.gif
I´m able to read and write codeplugs ,but when I tried to upgrade with tool ,it only corrupts codeplug.
what do I need to upgrade codeplug? Any homebrew circuit/schematic to do that?
Thanks in advance

Re: gp340 upgrading

Posted: Fri Dec 05, 2008 3:06 am
by mtp850
Flashing procedure requires different programming cable