thanks

So from my description you think i may have a chance in recovering my board with just a swap of chip. Thats good news. I will look into the chip and bootloading. Thanks for the help

Sorry you are dealing with a complete new comer to the Arduino world. It seems nothing on the board is warm. The atmega I’m guessing you are referring to the large removable chip marked atmega328p-pu (and again a complete rookie) is not warm. I have tried in the Arduino software to “Burn Bootloader” I get the following error avrdude.exe: usbdev_open(): did not find any USB device "usb"  The port and board are correctly selected and the OS is recognizing the board ok. Is this what I should be doing to flash the bootloader again? What about the baud rate will that have any effect on the board?  Before uploading blink I sent a script that had the following in it Serial.begin(57600);. Can that have changed anything that made it not work?  I’m lost don’t want to have to buy another one if this is fixable. Thanks for your help in advance.

I know there are a thousand posts about this but here is my story. I have an arduino uno. I cannot upload to it any more. The last sketch uploaded was blink and it is still working. When I hit reset led 13 blinks 3 times and it goes back into blink. When I connect the board to the PC (Win7 64) the pc adds a com port and it looks fine from the OS side. There is 3.3 and 5v coming out of the board. The TX and RX never go on. I tried a “loopback” test no response from the board.  I get the following error from the program software 1.0.3 avrdude.exe: stk500_getsync(): not in sync: resp=0x00 Did I kill the board? I was playing with 12V through an npn. It seems I may have killed the communications. Is there any way to bypass this with another connection? RS232?