Solution ) Why Arduino Nano NOT Uploaded (2019) | How to Upload avrdude: stk500_getsync()

Hi guys, I’m going to talk about why Arduino Nano (Chinese Version: CH340) was not eroded suddenly and how to unload in the latest version of arduino IDE Lately I installed in Arduino IDE As usual, I selected the communication port and selected Arduino Nano I tried to upload my code to the Arduino Nano but it was not working I tried all of my Arduino Nano, but they were not working neither I tried to figure out what’s going on and Finally I found something has been changed There are one more processor in the menu In order to use Chinese version Arduino, you will need to select the old Bbootloader in Tools – Processor now it is working well. As you can see The example code is working now There could be so many possible reasons you cannot upload your code. this could be one of solutions I hope it works for you Bye

Bernard Jenkins


  1. Thank You so much!!!!!!
    it worked like magic for me after several attempts of loading a program into my newly bought arduino nano

  2. Thank you, from Argentina, very very much, y solucion my problem. Excuse my bad English

  3. I'm extremely grateful to you for this solution my friend, I was going crazy thinking the board was bricked or something, almost threw it away, then decided to give another try at looking for an answer when I found you. Thank you my friend, Thanks a million.

  4. thanks for the solution now it works without a problem you are a lifesaver

  5. I am crying I was trying to find the error for 6 hours
    It really helped me

  6. Amazing I too spent a few hours trying to find a solution, wish I'd tried youtube sooner thought I'd bought duff nano's. Thanks

  7. Thank you very much. I'm upset for hours about the uploading code. This really works !! Thanks.

  8. Work' Great,
    I pretty much tried everything prior to seeing your video. I appreciate your time and help.

    Thank You,

  9. My friend. This problem was driving me crazy for ABOUT TWO WEEKS then,l I saw this video of yours! THANK YOU SO MUCH. I do appreciate your time and help very much. …THANK YOU

  10. Ufff i sick of this problem my arduino power light is not working.. Or i get the same error as in your video when i upload the program… Pleasr help to resolve this😔

  11. Hi. I am using Arduino IDE 1.8.5 as you but why I do not have the Atmega 328P old bootloader option???

  12. SORRY MI IGNORANCE, But ….. ¿What s the diference between Old and normal Bootloader? (i've tried succesfully on some pcs , some worksfin with Old bootloader and anothers normal bootloader) ¡WHY?.!! and anticipated thanks.

  13. thank you, after long time not using arduino, i confiuse why i cant use my arduino nano after i update the software. thia solve my problem

  14. thank you so much!
    i was getting a splitting headache trying to figure out why it was not uploading

  15. Hello, I have a very urgent problem with my Arduino NANO, when I upload a project WITHOUT ERRORS he regrets that there are problems in uploading the sketch, and even when I put the ATMEGA328 (OLD BOOTLOADER) processor the following error appears:

    Arduino: 1.8.9 (Windows 7), board: "Arduino Nano, ATmega328P (Old Bootloader)"

    Sketch uses 1714 bytes (5%) of program storage space. The maximum is 30720 bytes.

    Global variables use 189 bytes (9%) of dynamic memory, leaving 1859 bytes for local variables. The maximum is 2048 bytes.

    avrdude: verification error, first mismatch in byte 0x0000

    0x00! = 0x0c

    avrdude: verification error; content mismatch

    avrdude: verification error; content mismatch

    This report would have more information with

    "Show detailed results during compilation"

    option enabled in File -> Preferences.


    And that he installed the [b] driver for generic (Chinese) Arduinos CH340 [/ b] and still nothing

    I tried everything and nothing works, nobody has wanted to help me, nor have I had the time and willingness to explain myself. Please I need help inmediately!

  16. Thank you dude, you are the best person ever. Saved a lot of my time just because of you.

  17. I have distroid 1 nano board before watching this video and now this nano board is working properly

  18. Thank you for solving my problem. I was ready to purchase another board thinking there is something wrong with this one




  20. Amigo me has salvado de perder un dia por ir a devolverlo hasta la tienda donde lo compre a pedir el rembolso pensé que no funcionaba solo por esto muchas gracias.

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