No matter what I do, I get this error avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xbe

Development Tools Uploading
1

My problem is no matter what I do to upload a blink program to my Arduino pro-mini, I'm getting the not in sync error(below I have attached the error for reference).

Let me briefly explain my issue, I've like 60 pro-minis in that 30 are loaded with some code previously(and all are working fine), now I've lost the code because of my HDD issue(unfortunately I don't have a backup) now the things is I've to code the remaining pro-mini with the same code, I tried to retrieve the code using AVR Dude but I was getting this not in a sync error. later I tried to upload using a blink program from IDE and cmd line too still I was getting the same error while uploading. So, I tried with another Promini to my surprise same error and another and another I tried all 30 pro-minis all are giving me the same error (All 60 pro--minis are from the same vendor), I tried to upload the blink program to the remaining 30 prominis it worked like a charm. I don't know why the heck, those pms are not syncing. I tried uploading in different ways all to vein. What I observed is the pm's reset led blinks rapidly for few seconds whenever I connect power and when I press the reset button and while uploading too. Please help me out here

Here are things I've tried:

  • I tried to upload using Arduino uno, Mega, USB - TTL, FTDI...
  • changed the USB cable.
  • tried with a different computer.

Nothing worked with the preloaded pms but worked with empty pms. I went through a lot of posts for around two weeks nothing worked.

Below is the error message

Arduino: 1.8.13 (Windows 10), Board: "Arduino Pro or Pro Mini, ATmega328P (5V, 16 MHz)"
Sketch uses 444 bytes (1%) of program storage space. Maximum is 30720 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 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 -PCOM11 -b57600 -D -Uflash:w:C:\Users\BJI\AppData\Local\Temp\arduino_build_411622/sketch_apr15a.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                    : COM11

     Using Programmer              : arduino

     Overriding Baud Rate          : 57600

    avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xce
    avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xf7
    avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x6b
    avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xa8
    avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xee
    avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x4f
    avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xa8
    avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xbe
    avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xed
    avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x9e

avrdude done.  Thank you.
An error occurred while uploading the sketch

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
2

The things to verify are -

  • The Arduino is actually connected to the correct COM port as shown
  • The board/chip has a bootloader installed
  • The board is powered and connected properly
  • The code and uploader (avrdude) are configured for the correct board/chip/bootloader you have.

Note the dialog shows your upload is running at 57600, the default is usually 115200 bps

That short blinking at reset/restart is the bootloader trying to talk to any available uploader... it gives up if nobody responds - then runs whatever code is installed - if any.

3

Thanks for the response,

But as I mentioned earlier, my remaining pro minis are working fine with the same 57600 bps. The problems is all the 30 pro minis which are preloaded with a code are not accepting any new code (throwing the not in sync error). I have no idea how to override that.

If I try to upload code to the prominis (which are empty) the upload works and with the same setup I switch it with my other promini (which as a code in it) doesn't sync at all. This is what bothering me.

Kindly help..

4

Well, you could work on one board to see if you can use ISP to program it...
either with a dedicated ISP programmer, or a second board working as ‘Arduino as ISP’
Do a search for that term.

1 Like
5

Thanks a lot man, I missed out to try Arduino as ISP. Thanks for pointing me there. It worked like a charm. ufffff finally after many head banging days I was able to succeed. :slight_smile:

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