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PostPosted: Sun Feb 12, 2017 9:09 pm 

Joined: Sun Feb 12, 2017 8:47 pm
Posts: 1

i have had a hard time to update the firmware of my brandnew k8400

thought i should do a step throug because i didnt find a nailed answer to the problem....

1. Download Arduino ide ( V1.8.1 )
2. Load up Marlin.ino ( vertex-m1-v1.4-h2\Marlin\Marlin.ino ) as an example.
3. In Arduino IDE go to Tools -> Board -> Board Managment
4. Search for "Arduino AVR Boards"
5. Downgrade to 1.6.11 !!! ( Down-Left dropbox Version than Install)
6. Check if it compiles...
7. Dont forget the Boardjumper ( marked as JPROG )
8. Hit Upload
9. Wait.... after upload it will recompile and flash the firmware ( caution progressbar stops when coimpiling is done... but will not show you flashing... just WAIT. takes abou a minute or less. )
10. reset printer.

please tell me if i have forgot somethin...

regards MK

PostPosted: Mon Feb 13, 2017 8:47 am 
Senior Member
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Joined: Thu Oct 03, 2013 6:19 am
Posts: 2264
Location: Namur, Belgium
Use Arduino 1.0.x as stated in the instructions. Later versions won't work.

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