# Arduino Mega 2560 communication won't upload **URL:** \ **Category:** Arduino\ **Created:** [13 September 2018 01:33 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424 "2018-09-13T01:33:06Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![albert56054](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@albert56054](https://forum.core-electronics.com.au/u/albert56054)\ **Post date:** [13 September 2018 01:33 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/1 "2018-09-13T01:33:06Z")
I have a genuine arduino mega and I’m getting an error code: failed to load . I have used this previously on desktop and laptop computers with no problems with ver. 1.8.5 . The sketch i’m testing it with is the simple blink example in the ide. It connects to the USB ACMo port ok but when I load the sketch from the ide it nearly completes in the status bar, then the error comes up. Has the bootloader or main chip gone west? I have tried to reburn the the bootloader using the onboard pins with a usb/programmer device which has been used on other things and works ok. The reason i’m asking if it was a aftermarket copy i wouldn’t mind throwing it but being an orginal trying to save the expense… Is the unit cooked? 🙂 Any help would be appreciated , Cheers albert ---
**Author:** ![Clinton](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/clinton/32/1515_2.png) [@Clinton](https://forum.core-electronics.com.au/u/Clinton)\ **Post date:** [13 September 2018 01:46 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/2 "2018-09-13T01:46:59Z")
Hey Albert, Hopefully we can figure out what has happened, are you about to post what the content of the error that comes up is? ---
**Author:** ![albert56054](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@albert56054](https://forum.core-electronics.com.au/u/albert56054)\ **Post date:** [13 September 2018 07:59 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/3 "2018-09-13T07:59:13Z")
Cheers Clinton takes a little while then :- avrdude stk(500): timeout. error uploading etc. That’s about it. I can identify the board using the IDE Get Board Info and also get a tick for th USB Port connect ACMO/tty/ etc… that’s about it? ---
**Author:** ![Clinton](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/clinton/32/1515_2.png) [@Clinton](https://forum.core-electronics.com.au/u/Clinton)\ **Post date:** [13 September 2018 22:50 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/4 "2018-09-13T22:50:50Z")
I found an article that has listed a few of the things that could be causing the STK(500) error give them a try and let me know how you go. [https://www.instructables.com/id/A-solution-to-avrdude-stk500getsync-not-in-syn/](https://www.instructables.com/id/A-solution-to-avrdude-stk500getsync-not-in-syn/) ---
**Author:** ![albert56054](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@albert56054](https://forum.core-electronics.com.au/u/albert56054)\ **Post date:** [14 September 2018 00:36 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/5 "2018-09-14T00:36:19Z")
Ok Clinton I have done that . there is nothing plugged into the board LED 13 on board lights up apparently according to possible solution on the instructables, the booloader is ok. I have tried a different IDE 1.8.5 which used to work…hmm all the comms look ok I can see the RX Led flashing back after the sketch fails to load but I never see a blink on the TX Led. also I’ll keep searching . Cheers so far ---
**Author:** ![Clinton](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/clinton/32/1515_2.png) [@Clinton](https://forum.core-electronics.com.au/u/Clinton)\ **Post date:** [14 September 2018 04:02 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/6 "2018-09-14T04:02:36Z")
I got caught out by having the wrong serial port selected have you checked that? A lot of desktop PCs have the com header without anything connected to it. I had this problem trying to get a usb to serial connector working. ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/c/c19ddb0da09adbd37f85b180cc2a0430515d4104.png) ---
**Author:** ![albert56054](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@albert56054](https://forum.core-electronics.com.au/u/albert56054)\ **Post date:** [14 September 2018 12:23 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/7 "2018-09-14T12:23:00Z")
Linux user: Always worked as Port: " dev/tty/ACMO (Arduino/Genuino Mega or Mega 2560)" lsusb Bus 008 Device 003: ID 2341:0042 Arduino SA Mega 2560 R3 (CDC ACM) ==\> rssi\_level:2, rate\_bitmap:0x000ff000 [15037.749425] usb 8-1.2: new full-speed USB device number 3 using xhci\_hcd [15037.851803] usb 8-1.2: New USB device found, idVendor=2341, idProduct=0042 [15037.851816] usb 8-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=220 [15037.851823] usb 8-1.2: Manufacturer: Arduino (www.arduino.cc) [15037.851829] usb 8-1.2: SerialNumber: 7533531343735160A1C1 [15037.852263] usb 8-1.2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes [15037.898490] cdc\_acm 8-1.2:1.0: ttyACM0: USB ACM device [15037.901330] usbcore: registered new interface driver cdc\_acm [15037.901334] cdc\_acm: USB Abstract Control Model driver for USB modems and ISDN adapters All ok sending end 🙂 cheers still searching here: ) ---
**Author:** ![Stephen](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/stephen/32/1599_2.png) [@Stephen](https://forum.core-electronics.com.au/u/Stephen)\ **Post date:** [16 September 2018 23:27 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/8 "2018-09-16T23:27:52Z")
Hey Albert, It sounds to me like you might need to try re-burning the bootloader again. If you have another computer it’s always a good idea to try from another computer. ---
**Author:** ![albert56054](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@albert56054](https://forum.core-electronics.com.au/u/albert56054)\ **Post date:** [18 September 2018 06:37 UTC](https://forum.core-electronics.com.au/t/arduino-mega-2560-communication-wont-upload/3424/9 "2018-09-18T06:37:23Z")
Cheers as well I have tried 3 all ends with tears Lol. I’m of the view it’s the boot loader … so I’m guessing I have to try direct to the Mosi …pins etc … again using other computers think I have tried with 1 see how I fare … Thanks again albert the quick 🙂