Problem Uploading to board

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  hello!

i´m having trouble connecting arduino mega 2560 pc;

i have new mega board, , had barely started using couple days ago, , worked perfectly, ran couple sketches , ok. today however, cant pc upload board, stay stuck while uploading , eventualy give me error:


problem uploading board.

avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

i have windows 7 ultimate, 64-bit. have tried reseting before uploading board, connecting different usb ports, reinstalling drivers, , couple few other things have read in forums, there´s no effect.

the code seems not issue, not upload anything, "bare minimum" example.

i tried uploading board on mac, , worked, apparently there´s no problem board.

any suggestions?

thank you.

some mega boards fail upload if sketch contains "!!!" anywhere.  check messages.


Arduino Forum > Using Arduino > Installation & Troubleshooting > Problem Uploading to board


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