but as you can see on the procedure I did that …four times , and I think i’ve been lucky , since I’m doing a very danger procedure, and my module still working…
do you know if is possible to go from the 401 to 404?
I tried your suggestion DTR Hi and Low , but is the same… it does no pass from the message “Power ON the MS: Linking…” , I tried also with a desktop pc, because I use a laptop with an rs232 emulator and I was suspecting on this, but…
I also increased the power supply from 9v to 12v on the module.
I use the roundsolutions boards and my own. I don’t have the sparkfun EVK but I did take a quick look at the schematics and the only difference I could see was the DTR line.
Just to check that everything is working fine 115200 baud hardware handshake. (all of this should be take care of by the module anyway but test).
I have Just had another look at the schematic for the EVK, the only connections made to serial D socket are RX TX RTS CTS. The transfer program may well be checking for more than is provided. (just a stab in the dark)
You may have to ask SF directly how you are ment to update firmware.
Indeed the only thing that I made was a connection from pin 5 to GND, I the schematic from SF module this pin is connected to ground, unfortunatelly in the board is not.
I must say that I already read this help topic in the past, but did not relate it with my board (V3) therefore did not pay so much attention to it.
I other hand I asked technical support for this board from SF , but he only solution they found to me was a refond, I must say also that Im glad for theire answer and promplty porpuse me a money back refond , but as TS I was hoping a lot more help than this, even because this is a serious problem on theire board , most certainly many customers already complain about this.
Nevertheless many thanks to all that reply me in my thread, and keep this good forum !