i just flashed my GTX3 yesterday and it went fine.

i cut all the traces on the st explorer board on the little "bridges" going to the processor development side. its pretty much the same as breaking the board but its reversible with solder.

i use a straight pin header and bent it 90deg with vise grips and soldered it the radios board. there isnt the provision like the GT3B case to cut a slot and send it out the side cause a screw mount peg is there so to flash the case has to be apart and the board unscrewed from the top cover.

i also made a 4 pin cable out of part of an old cdrom audio cable and part of a DIP-8 chip socket that i cut up with a dremel. soldered and heat shrunk the connections and taped up some bits and it was ready.

so i installed the toolkit, and then the patch then restarted the computer (acer aspireone netbook) and then connected the radio to the st board. then i turned on the radio and then plugged in the USB. Then i started the programmer software and made the selections.

then i read the original software off and saved it.

then i copied the new code from the github display window that shows the code and pasted it into a txt document and renamed the suffix to .s19 to change the format. flashed the radio and it took the first time.

i had some goofy issues when setting endpoints and having ABS enabled (pulsed throttle constantly) but it was because i never calibrated the throttle and steering inputs.

now it works MINT. LOVE IT! thanks big thanks to PSX and QuangVuong and losikid67 for the code and all the tutorials on how to make this happen.

I bought this radio cause it was cheap and had good features. had no idea that there was custom software for it when i bought it. its right up my alley. nothing i own hasnt been modified or reflashed or whatnot in someway.

brian