when I tried uploading my sketch to my Arduino nano and DS3231 I get the error message "Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions." the sketch itself verified so it should work but it's just the uploading to the Arduino is the problem, in this situation what should I do? buy a new Arduino nano, or is there a way to fix it without buying new one? in addition, I'm getting the avrdude error message but idk how to declare the upload port I'm using in my sketch so how would you do that?
Did it ever work before?
Which version of the IDE?
Which operating system?
Please enable verbose output during upload and disable verbose output during compilation in file → preferences in the IDE. Next perform an upload and post the result here in code tags. In IDE 1.8.x, there will be a copy error messages button at the right in the orange bar above the output window when the upload fails. In IDE 2.0, right click in the output window and select copy all from the context menu and paste it here in code tags.
Reasons for failed uploads:
- Wrong board selected; e.g. a Nano is not the same as a Nano Every.
- Wrong port selected.
- Wrong processor type selected (tools → processor in the IDE).
Hi,
Have you tried up loading "Blink with out delay" example code?
Have you got the Nano selected in the IDE?
Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?
Hand drawn and photographed is perfectly acceptable.
Please include ALL hardware, component names and pin labels.
Thanks.. Tom.. 
Now that I think about it, I've only got avr dude. thank you error as the most successful error message when uploading I don't remember a time when I uploaded any sketch to completion and I do have the nano selected and I have the IDE 1.8 and I did disable the verbose output during compilation, and it still didn't work and here's my error message:
Arduino: 1.8.19 (Windows 10), Board: "Arduino Nano, ATmega328P"
Sketch uses 4540 bytes (14%) of program storage space. Maximum is 30720 bytes.
Global variables use 410 bytes (20%) of dynamic memory, leaving 1638 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM5 -b115200 -D -Uflash:w:C:\Users\Thecht\AppData\Local\Temp\arduino_build_241521/Module_clock_12_hour_time_2.0.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 (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: ser_open(): can't open device "\.\COM5": The system cannot find the file specified.
avrdude done. Thank you.
Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
what's weird is I got the avr. dude error message when I tried loading up the blink without delay but ive heard that the avr. dude error message is a message that the code uploaded successfully but the laptop/computer cannot communicate a successful upload message but idk if that's true and here's the layout I'm using.
But instead of SCL 21 I put D4 and instead of SDA 20 I put D5
this might surprise you that I'm using this instead of A4 and A5 but when I tried that it didn't work either
That is not an error it's just avrdude saying it's finished.
Your problem is this
Does COM5 disappear from Windows device manager (and the list of ports in the IDE) when you disconnect the board?
Not the cause of your problem but the pins are A4 and A5.
No, COM5 does not disappear when I disconnect it from my board, and I originally had SCL 21 as A4 and SDA 20 as A5 but that got the same result so I thought maybe digital pins would work better but they didn't. Anyway, what should I do about the COM5 port on my laptop, because it's not working properly in my sketch but it works properly in the Blink without delay since I'm only getting the avr dude error message with that. However, my sketch verified so that can't be the problem
OK, so it's not the Nano. Check in Windows device manager for anything with yellow exclamation marks and fix it 
If your Nano is an original, it will have a FTDI TTL-to-USB adapter on it (and should work out-of-the-box); if it's a clone, it more than likely has the CH340 TTL-to-USB adapter on it and you will have to download the driver from http://www.wch-ic.com/downloads/CH341SER_ZIP.html and install it.
If it's a clone with the CH340 and you have taken the above hurdle, the processor (see previous post) will more than likely be the one marked "old bootloader"; but you have to try all 3 options for the one that works.
That should be the correct ones but you will only be able to verify once you can upload. As said, that is not related to your upload problem.
Ok so I found out I had an update I didn't do and after I updated it, I got the avr. dude thank you error message and to confirm that means it worked right? right now, it's not connected to the Arduino but if it was connected, I would get the same thing and that means it worked?
If your board is not connected to the computer, yoy can not upload.
Please use the button "copy error messages" to copy errors to the clipboard and next paste them here; screenshots of errors (and code) are useless.
I tried uploading the sketch while it's plugged into the Arduino However, I got the same error message:
Arduino: 1.8.19 (Windows 10), Board: "Arduino Nano, ATmega328P"
Sketch uses 4540 bytes (14%) of program storage space. Maximum is 30720 bytes.
Global variables use 410 bytes (20%) of dynamic memory, leaving 1638 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM5 -b115200 -D -Uflash:w:C:\Users\Thecht\AppData\Local\Temp\arduino_build_196024/Module_clock_12_hour_time_2.0.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 (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 115200
An error occurred while uploading the sketch
avrdude: ser_open(): can't open device "\.\COM5": The system cannot find the file specified.
avrdude done. Thank you.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
and when I try opening my serial monitor, I get the same error message but with an added part at the end:
Arduino: 1.8.19 (Windows 10), Board: "Arduino Nano, ATmega328P"
Sketch uses 4540 bytes (14%) of program storage space. Maximum is 30720 bytes.
Global variables use 410 bytes (20%) of dynamic memory, leaving 1638 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM5 -b115200 -D -Uflash:w:C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093/Module_clock_12_hour_time_2.0.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 (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 115200
An error occurred while uploading the sketch
avrdude: ser_open(): can't open device "\.\COM5": The system cannot find the file specified.
avrdude done. Thank you.
Board at COM5 is not available
Board at COM5 is not available
Board at COM5 is not available
Board at COM5 is not available
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
Given your laptop is not connecting to you Arduino properly, the easiest route is to go into the system device manager.
To do this click on the windows start and type in device manager.
You can go to the tab, View, then devices by container. Then select Show Hidden Devices.
Make sure the Arduino is not plugged in.
You will see Arduino Nano (com X) somewhere near the top of the list, but greyed out. X being the number of the com port windows has assigned to the Arduino.
At this stage you could delete the driver, shut down the laptop, then restart without the Arduino plugged in.
Do not think you can short-cut this process by just looking for a new driver, it needs a shut down and restart to make sure the old driver has been removed.
When You again restart, then plug in the Arduino, the laptop will look for a driver for the port the Aduino is plugged into.
When going back into drive manager as before with the Arduino plugged in, you will see if the connection is OK.
so, I got this message
but then after all 10 attempts my Arduino did not respond and I got this message:
Arduino: 1.8.19 (Windows 10), Board: "Arduino Nano, ATmega328P"
C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Thecht\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Thecht\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Thecht\Documents\Arduino\libraries -fqbn=arduino:avr:nano:cpu=atmega328 -vid-pid=1A86_7523 -ide-version=10819 -build-path C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093 -warnings=none -build-cache C:\Users\Thecht\AppData\Local\Temp\arduino_cache_337121 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\Thecht\Documents\Arduino\Module_clock_12_hour_time_2.0\Module_clock_12_hour_time_2.0.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Thecht\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Thecht\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Thecht\Documents\Arduino\libraries -fqbn=arduino:avr:nano:cpu=atmega328 -vid-pid=1A86_7523 -ide-version=10819 -build-path C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093 -warnings=none -build-cache C:\Users\Thecht\AppData\Local\Temp\arduino_cache_337121 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files (x86)\Arduino\hardware\tools\avr -verbose C:\Users\Thecht\Documents\Arduino\Module_clock_12_hour_time_2.0\Module_clock_12_hour_time_2.0.ino
Using board 'nano' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Using core 'arduino' from platform in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr
Detecting libraries used...
"C:\\Program Files (x86)\\Arduino\\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_NANO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\eightanaloginputs" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp" -o nul
Alternatives for Wire.h: [Wire@1.0]
ResolveLibrary(Wire.h)
-> candidates: [Wire@1.0]
"C:\\Program Files (x86)\\Arduino\\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_NANO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\eightanaloginputs" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\libraries\\Wire\\src" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp" -o nul
Alternatives for DS3231.h: [DS3231_RTC@1.1.0]
ResolveLibrary(DS3231.h)
-> candidates: [DS3231_RTC@1.1.0]
"C:\\Program Files (x86)\\Arduino\\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_NANO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\eightanaloginputs" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\libraries\\Wire\\src" "-IC:\\Users\\Thecht\\Documents\\Arduino\\libraries\\DS3231_RTC" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp" -o nul
Using cached library dependencies for file: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\Wire.cpp
Using cached library dependencies for file: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire\src\utility\twi.c
Using cached library dependencies for file: C:\Users\Thecht\Documents\Arduino\libraries\DS3231_RTC\DS3231.cpp
Generating function prototypes...
"C:\\Program Files (x86)\\Arduino\\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_NANO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\eightanaloginputs" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\libraries\\Wire\\src" "-IC:\\Users\\Thecht\\Documents\\Arduino\\libraries\\DS3231_RTC" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp" -o "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\preproc\\ctags_target_for_gcc_minus_e.cpp"
"C:\\Program Files (x86)\\Arduino\\tools-builder\\ctags\\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\preproc\\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\\Program Files (x86)\\Arduino\\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_NANO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\eightanaloginputs" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\libraries\\Wire\\src" "-IC:\\Users\\Thecht\\Documents\\Arduino\\libraries\\DS3231_RTC" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp" -o "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp.o"
Compiling libraries...
Compiling library "Wire"
Using previously compiled file: C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093\libraries\Wire\Wire.cpp.o
Using previously compiled file: C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093\libraries\Wire\utility\twi.c.o
Compiling library "DS3231_RTC"
Using previously compiled file: C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093\libraries\DS3231_RTC\DS3231.cpp.o
Compiling core...
Using precompiled core: C:\Users\Thecht\AppData\Local\Temp\arduino_cache_337121\core\core_arduino_avr_nano_cpu_atmega328_0c812875ac70eb4a9b385d8fb077f54c.a
Linking everything together...
"C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.elf" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\sketch\\Module_clock_12_hour_time_2.0.ino.cpp.o" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\libraries\\Wire\\Wire.cpp.o" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\libraries\\Wire\\utility\\twi.c.o" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093\\libraries\\DS3231_RTC\\DS3231.cpp.o" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/..\\arduino_cache_337121\\core\\core_arduino_avr_nano_cpu_atmega328_0c812875ac70eb4a9b385d8fb077f54c.a" "-LC:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093" -lm
"C:\\Program Files (x86)\\Arduino\\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\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.elf" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.eep"
"C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr/bin/avr-objcopy" -O ihex -R .eeprom "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.elf" "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.hex"
Using library Wire at version 1.0 in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\Wire
Using library DS3231_RTC at version 1.1.0 in folder: C:\Users\Thecht\Documents\Arduino\libraries\DS3231_RTC
"C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr/bin/avr-size" -A "C:\\Users\\Thecht\\AppData\\Local\\Temp\\arduino_build_798093/Module_clock_12_hour_time_2.0.ino.elf"
Sketch uses 4540 bytes (14%) of program storage space. Maximum is 30720 bytes.
Global variables use 410 bytes (20%) of dynamic memory, leaving 1638 bytes for local variables. Maximum is 2048 bytes.
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM5 -b115200 -D -Uflash:w:C:\Users\Thecht\AppData\Local\Temp\arduino_build_798093/Module_clock_12_hour_time_2.0.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 (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"
Using Port : COM5
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xb0
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xb0
avrdude done. Thank you.
Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions.
I tried uploading the blink without delay and I got the same error message
Don't post on bold, it's considered shouting and therefore impolite.
Have you tried tge different processor options in tools -> processor?
Yes. What did you have to change?
I had to use the old bootloader instead of the most modern
What do you mean by old bootloader ?
The official nano comes with a boot loader, so are we to assume this is a clone, with no boot loader ? and you have put a boot loader on it ?
Lastly where did you get the boot loaders from and what versions are they ?
This may help given it has the fault you were describing.
When you do ask for help in future, can you please describe the device you are using and include important facts like the device being a clone with no boot loader.
Take note of the part that says
ATTENTION - some clones are different. they don't have an ftdi chip, which may cause your computer to not see the arduino once plugged in with the usb.