how to solve device signature is 0x000000 error.

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hello!!
i trying upload blink.hex code atmega328p using arduino uno (arduino isp) , avrdude.
i uses below link making connection , uploading .hex file
http://paramountmechatronics.wordpress.com/2012/11/03/arduino-burner-for-atmel-chips/

first time code uploaded atmega328p using internal rc oscillator, speed of led blinking slow
then changes fuse bits setting 0xff using below command
avrdude -p com4 -b 19200 -c avrisp -p m328p -v -e -u efuse:w:0×05:m -u hfuse:w:0xd6:m -u lfuse:w:0xff:m
after blink code runs expected.
now real problem started when tried burn code same atmega328p using
avrdude -p comport -b 19200 -c avrisp -p m328p -v -e -u flash:w:hexfilename.hex -u lock:w:0x0f:m
time error messege appear:
device signature 0x000000
avrdude: yikes!  invalid device signature.
     double check connections , try again, or use -f override
     this check.

i googled lot solution till not able fix it. bought new atmega328-pu wire (recheck it) again after uploading got same error message.
is there problem in arduino uno while working isp,  if not kindly suggest how can solve error.  :(

when had error fixed pulling off bread board , reassembling.


Arduino Forum > Using Arduino > Microcontrollers > how to solve device signature is 0x000000 error.


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