Basic Information:
Printer Model: Kingroon KP3S 3.0
MCU / Printerboard: Kingroon KP3 V1.3 with GD32F303
Host / SBC Does Not Apply Anymore
klippy.log Does Not Apply Anymore
I have a KP3S 3.0 with board v1.3 and GF32F303.
I was able in the past to update marlin, bring print back to the factory firmware, then I installed a BTT Pi I think two times succesfully, following the guide from Kingroon How to Prepare Klipper Firmware for Kingroon KP3S Using Fluiddpi — Kingroon 3D (But this guide has some small typing mistakes that I was able to figure it out overtime)
Last couple of days my BTT PI stop to communicate with KP3S… so I tried to reinstall BTT PI with their new OS from couple of weeks ago, tried the old one again, since nothing was working I decided to put the kp3s default firmware back… I tried several versions, old, new, etc and all of then finish with "TFT Updating 100%) then after reboot it keeps saying “booting”
It seems that my board is not able to “keep” the firmware? is that any test with multimeter or whatever that I can do in order to verify that?
I heard about a problem with bootloader but how can I test that? Also I check some posts about a ST-Link that is kind of pendrive… if it helps I can buy its 10USD and I can receive in the next day…
Since my problem escalate my klippy logs does not matter yet until I figure it out how to fix this issue that my board is not accepting klipper or marlin or stock firmware
Thanks in advance for any help with troubleshooting
Picture of the Board before installing the bltouch
What Happens when I try to upload any robin_nano.bin
The screen goes from “Booting …” to 0% then keep increasing and stuck at 100%
I can wait hours of if I reboot it shows “Booting…”
and it rename the robin_nano.bin to .cur in the sd
it was a problem in the power adapter… it was starting with 24v and after a few seconds going down to 5 or 3v… this was the cause
Best Regardst