Verification error; first mismatch at byte 0x0000 0x62 != 0x0c

Arduino Uno R3. Blink worked fine the first time I uploaded it. A day later I wrote the first program in the book, and it verified correctly. Did the upload and got this message. Now I can't even upload Blink. Get the same verification message. Uninstalled Arduino and reinstalled with no luck. Deleted the com port 3 and set it back up, no luck. Rebooted, did a reset, same message. The board and port under Tools are correct. Thanks for any help.

Your post was MOVED to its current location as it is more suitable

In Preferences, turn on:

Show verbose output during: [X] compilation. [X] upload

Try to upload the Blink example.

Copy all of the messages from the message box below the sketch and paste them into a reply here.

Here is the compile and upload. Hope this is what you needed.
Thanks

Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Arduino Uno"

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -built-in-libraries C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\libraries -libraries C:\Users\rcapo\Documents\Arduino\libraries -fqbn=arduino:avr:uno -vid-pid=2341_0043 -ide-version=10819 -build-path C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692 -warnings=none -build-cache C:\Users\rcapo\AppData\Local\Temp\arduino_cache_339714 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -verbose C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\examples\01.Basics\Blink\Blink.ino

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\arduino-builder -compile -logger=machine -hardware C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -built-in-libraries C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\libraries -libraries C:\Users\rcapo\Documents\Arduino\libraries -fqbn=arduino:avr:uno -vid-pid=2341_0043 -ide-version=10819 -build-path C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692 -warnings=none -build-cache C:\Users\rcapo\AppData\Local\Temp\arduino_cache_339714 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr -verbose C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\examples\01.Basics\Blink\Blink.ino

Using board 'uno' from platform in folder: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr

Using core 'arduino' from platform in folder: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr

Detecting libraries used...

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\sketch\Blink.ino.cpp" -o nul

Generating function prototypes...

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\sketch\Blink.ino.cpp" -o "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\preproc\ctags_target_for_gcc_minus_e.cpp"

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\preproc\ctags_target_for_gcc_minus_e.cpp"

Compiling sketch...

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\cores\arduino" "-IC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\sketch\Blink.ino.cpp" -o "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\sketch\Blink.ino.cpp.o"

Compiling libraries...

Compiling core...

Using precompiled core: C:\Users\rcapo\AppData\Local\Temp\arduino_cache_339714\core\core_arduino_avr_uno_7badb9d0d399766d9f906b5fb78ea16e.a

Linking everything together...

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692\sketch\Blink.ino.cpp.o" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/..\arduino_cache_339714\core\core_arduino_avr_uno_7badb9d0d399766d9f906b5fb78ea16e.a" "-LC:\Users\rcapo\AppData\Local\Temp\arduino_build_102692" -lm

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.eep"

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-objcopy" -O ihex -R .eeprom "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex"

"C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-size" -A "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.elf"

Sketch uses 924 bytes (2%) of program storage space. Maximum is 32256 bytes.

Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avrdude -CC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex:i

avrdude: Version 6.3-20190619

     Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/

     Copyright (c) 2007-2014 Joerg Wunsch



     System wide configuration file is "C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf"



     Using Port                    : COM3

     Using Programmer              : arduino

     Overriding Baud Rate          : 115200

     AVR Part                      : ATmega328P

     Chip Erase delay              : 9000 us

     PAGEL                         : PD7

     BS2                           : PC2

     RESET disposition             : dedicated

     RETRY pulse                   : SCK

     serial program mode           : yes

     parallel program mode         : yes

     Timeout                       : 200

     StabDelay                     : 100

     CmdexeDelay                   : 25

     SyncLoops                     : 32

     ByteDelay                     : 0

     PollIndex                     : 3

     PollValue                     : 0x53

     Memory Detail                 :



                              Block Poll               Page                       Polled

       Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack

       ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------

       eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff

       flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff

       lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00

       hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00

       efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00

       lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00

       calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00

       signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00



     Programmer Type : Arduino

     Description     : Arduino

     Hardware Version: 3

     Firmware Version: 4.4

     Vtarget         : 0.3 V

     Varef           : 0.3 V

     Oscillator      : 28.800 kHz

     SCK period      : 3.3 us

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f (probably m328p)

avrdude: reading input file "C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex"

avrdude: writing flash (924 bytes):

Writing | ################################################## | 100% 0.17s

avrdude: 924 bytes of flash written

avrdude: verifying flash memory against C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex:

avrdude: load data flash data from input file C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex:

avrdude: input file C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex contains 924 bytes

avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 0.16s

An error occurred while uploading the sketch

avrdude: verifying ...

avrdude: verification error, first mismatch at byte 0x0000

     0x62 != 0x0c

avrdude: verification error; content mismatch

avrdude done. Thank you.

Well, you are not the first to encounter this problem. A Google search shows the same problem back to 2016! Unfortunately, nobody I have found has gotten an explanation or a fix. :frowning:

At least one report says that the sketch is uploaded and runs even though the verification fails. If you change the blink period and try an upload, does the LED blink at the new rate?

I see that you are using the "Windows Store" version of the install and I have seen other people fix problems by switching to the "arduino.cc" download version.

I compiled Blink.ino and 0x0C is, indeed, the right value for the first byte of memory:

:100000000C945C000C946E000C946E000C946E00CA
:100010000C946E000C946E000C946E000C946E00A8
:100020000C946E000C946E000C946E000C946E0098
.
.
.

If downloading the IDE from Arduino.cc doesn't help, the next step would be to read out the contents of FLASH to see how it reads. The command that the Arduino IDE used to write FLASH is in your verbose upload messages:

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avrdude -CC:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\rcapo\AppData\Local\Temp\arduino_build_102692/Blink.ino.hex:i

For reading you would use the same command in a console window but change the last bit to:
-Uflash:r:flash.hex:i
The 'w' changes to 'r' to Read instead of Write and we just create a 'flash.hex' file in the current directory. The 'i' is for Intel Hex Format.

1 Like

I installed the IDE from Arduino and it looks like it worked; I don't get all those errors and the upload completes; but I get a message under NOTIFICATIONS "Could not reconnect to serial port. Error. Timeout after 10000ms.". And the change I made to BLINK does not take.

Using board 'uno' from platform in folder: C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4
Using core 'arduino' from platform in folder: C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4
Detecting libraries used...
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\cores\arduino" "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\sketch\Blink.ino.cpp" -o nul
Generating function prototypes...
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\cores\arduino" "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\sketch\Blink.ino.cpp" -o "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\preproc\ctags_target_for_gcc_minus_e.cpp"
"C:\Users\rcapo\AppData\Local\Arduino15\packages\builtin\tools\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\cores\arduino" "-IC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.4\variants\standard" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\sketch\Blink.ino.cpp" -o "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\sketch\Blink.ino.cpp.o"
Compiling libraries...
Compiling core...
Using precompiled core: C:\Users\rcapo\AppData\Local\Temp\arduino-core-cache\core_arduino_avr_uno_cfcae00a93e207f8e161720642a0d53f.a
Linking everything together...
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75\sketch\Blink.ino.cpp.o" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/..\arduino-core-cache\core_arduino_avr_uno_cfcae00a93e207f8e161720642a0d53f.a" "-LC:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75" -lm
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.eep"
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -R .eeprom "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.elf" "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.hex"
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-size" -A "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.elf"
Sketch uses 932 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.


Compilation complete.
"C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -V -patmega328p -carduino "-PCOM3" -b115200 -D "-Uflash:w:C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.hex:i"

avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

     System wide configuration file is "C:\Users\rcapo\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"

     Using Port                    : COM3
     Using Programmer              : arduino
     Overriding Baud Rate          : 115200
     AVR Part                      : ATmega328P
     Chip Erase delay              : 9000 us
     PAGEL                         : PD7
     BS2                           : PC2
     RESET disposition             : dedicated
     RETRY pulse                   : SCK
     serial program mode           : yes
     parallel program mode         : yes
     Timeout                       : 200
     StabDelay                     : 100
     CmdexeDelay                   : 25
     SyncLoops                     : 32
     ByteDelay                     : 0
     PollIndex                     : 3
     PollValue                     : 0x53
     Memory Detail                 :

                              Block Poll               Page                       Polled
       Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
       ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
       eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
       flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
       lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
       signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00

     Programmer Type : Arduino
     Description     : Arduino
     Hardware Version: 3
     Firmware Version: 4.4
     Vtarget         : 0.3 V
     Varef           : 0.3 V
     Oscillator      : 28.800 kHz
     SCK period      : 3.3 us

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: reading input file "C:\Users\rcapo\AppData\Local\Temp\arduino-sketch-3262DBC29A00D67EEADF7B9AF5DC1C75/Blink.ino.hex"
avrdude: writing flash (932 bytes):

Writing | ################################################## | 100% 0.13s

avrdude: 932 bytes of flash written

avrdude done. Thank you.


upload complete.

Weird. I'd try re-starting the PC to see if that helps.

No luck rebooting. Guess I'll just send this back to Amazon. Very disappointing. Thanks for the help.

I got this same error. I looked for a fix and couldn't find one, so I tried a few things like re-install, reboot nothing worked. I plug my board in and at the top of the sketch program right next to the upload button is a verify button I clicked that and then tried to upload another code and now it functions properly. Hope this helps