I’m trying to reinstall klipper firmware in my Ender 3 (motherboard version is 1.1.4).
After connecting the raspberry to the printer and running the command
“avrdude -p atmega1284p -c arduino -b 57600 -P /dev/ttyUSB0 -U out/klipper.elf.hex”
the firmware seems to flash correctly (the first time I changed it I was forced to use an Arduino, connecting with the pins) but despite this the screen remains blue without showing signs of life (even the fan above the motherboard has turned off).
I don’t know what to do … do I have to reinstall the new firmware with the arduino or do I have to have another problem?
Hello,
Did you get this to work? I have the same issue. I can flash the official firmware and it works fine. But Klipper firmware does not work.
The funny thing is that I have to do all flashing using GPIO ports of my Raspberry Pi. Even though I upgradede the bootloader, it does not work via USB. That’s ok for me, I can just connect the GPIO pins.
Another funny thing is that it used to work, with Klipper and all. But I turned all off to sleep and today things stopped working.
Anyway, if you have any more info I would be glad to know.
No, no suggestions sorry I never managed to get it working again, also because after a couple of attempts I gave up and went back to using the official firmware that seems working fine
I think I realized what was the problem. Klipper seems to require a specific order of turning things on, after turning off everything for the day. I need to first turn on my printer and then turn on the Raspberry Pi. If I don’t do in this order, the display in the Ender 3 does not show anything.
You have to click the IO button and scroll down to Shutdown/// and shut it down properly ro you will kill your SDcard.
Why aren’t you coping the klipper.bin to your computer, renaming it to firmware.bin, and then moving it to your SDcard with a FILEZILLA program?