Appreciate any info the group may have on my Mega problem.
Sketch last loaded still runs OK and all of the sudden can't load sketches any longer. Many resets, checked & reloaded drivers, tried other PC, rebooted PC, tried different USB cable, reinstalled com port 3, USB Port.... don't think I fried the board. Running v0015 on Vista, it worked OK initially. Bootloader an issue maybe, not sure how to tell is is corrupted.
This seems to be a common problem, anyone know a fix for it.
Error message is below, which I have been googling all day but no clear resolution found. Only had this board two days but you never know if it had a flaw when I got it, but it was brand new.
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
Are you sure you have Arduino Mega selected in the Tools > board menu? What were you doing with the board when it stopped working? What does the current sketch on it do?
Loaded sketches many times, all OK. last one just triggered an input with a button to turn off an LED. It still works OK. Just can't upload new stuff to it any longer. Was just editing sketches when it went on vacation on me.
Tried all the tips you noted as well as many others. I think the bootloader is corrupted but don't have the hardware to re-load it. I wonder if I can send it to be checked and repaired, especially if its a software issue. Its only been used a few days. All the board LEDS appear to blink when they are supposed to.
I made a video of the board powering up. Probably better to see it vs describing it. LED I used on pin 13 (pulled out for this) blinks a few times then stays on until I press a button that sets pin 7 High and turns out the LED.