How to Falsh the EMMC Chip on Kingroon KP3S Pro V2 and KLP1

The Kingroon KP3S Pro V2 and KLP1 3D printers actually give you full SSH access to the system, some of you have already find that out. If any system failure happens and you are not able to fix it, or you are just doing some test, this article will show you how to flash the EMMC to fix it.

Before start, we must warn you, messing up with the system or flashing EMMC have some risks that may cause system failure or warranty loss.

  • Prepare
  1. Tools you need.

Before starting, you need to get a SD card reader. Try get a good one with high performance, or it may not able to white the EMMC moudle.

 After that, find the EMMC adapter form the package.

  1. Files you need

After that, go to and searching for the system image. We will release new versions soon. If your printer works fine and no actually features shows on the download page, please do not flash it.

And here are the files for the stock system image:

armbian-KP3S Pro V2-20230322(Beta)(no screen):!AmGcVrncIH3ZjBYprzZurjFIEcmr?e=c5gmTx

armbian-KP3S Pro V2-20230606(Latest)(with screen): 


Screen Version:

KINGROON-KLP1 V2.2-coreXY-20230725:

KINGROON-KP3S Pro V2 V2.2-20230804


KINGROON-KP3S Pro V2 V2.4-20230818: 



---------The Above For KINGROON KP Cheetah V1.0/V2.0 Mainboard Only-------


KINGROON-KLP1 V2.2-coreXY-20231125:


KINGROON-KP3S Pro V2 V2.2-20230921:

---------The Above For KINGROON KP Cheetah V2.2 and Newer Mainboard Only-------



  1. Software you need

 Go to and download balenaEtcher. If you are Windows user who’s already get used to Win32DiskImager, it is also fine.

 Prepare the EMMC Module

 1.Get the EMMC module

Remove the bottom cover of the KINGROON KP3S Pro V2 printer, then you are able to see the EMMC module.

Loose the screws on it, remove the module carefully.

 2.Get everything connected

Connect the module to the EMMC adapter and SD card reader, as the photo shows. Be careful with the directions. Then you are ready for the next step.

Flash the EMMC Module

 1.Setup balenaEtcher

Connect the SD card reader to your PC or Mac, you should be able to see a disk named “boot”, that’s the EMMC module. If not, please check the connection and make sure the direction is correct.

Open the balenaEtcher, choose the image file you just downloaded, and click flash. Please double check the disk you choose, in case you lost any data.

If the disk disconnected in the middle or the flash failed, please use a different SD card reader.

Once the flashing finished, you are all set. Just put everything back, reboot your printer, and enjoy the 3D printing.



Previous article Filament Loading and Unloading on the KINGROON KP3S Pro V2 and KLP1
Next article Leveling Sensor Adjustment on Kingroon KLP1 3D Printer


Carlos - January 12, 2024

Haber tengo varios problemas he comprado la impresora de segunda mano y me da error con la autocarga de filamento como que no reconoce que hay cable y varios problemas más como algunos gcode que no reconoce la maquina. Puede ser que el antiguo usuario borrará algo y por esos estos fallos? Tendría que hacer un flaseo de estos?

Carlos - December 31, 2023

Hi, I have updated the memory to KINGROON-KP3S Pro V2 V2.4-20230818.

I have the same message on start Pin ‘PE11’ is not a valid pin name on mcu ‘mcu’ and the screen shows Loading…

Give me any solution please…

Marzio - December 6, 2023

Hi, I’m using KINGROON-KP 3S Pro V2 V2.4-20230818 and performing a print it seems retraction is not enable at firmware level: for all G10 and G11 commands are marked as unknown.
Is it something intentional because of construction problems or is it an oversight/you are plan to release soon?

JAEM - November 28, 2023

Hola Amigos, pudieron solucionar el tema de la pantalla en loading?

Jimmy - November 28, 2023

先是出現Pin ‘PE11’ is not a valid pin name on mcu ‘mcu’

awakesu - November 23, 2023

KP3s Pro V2 has issues with False, which can cause abnormal operation after flashing. I suggest that the official take it seriously and remove the damaged files from the webpage.

Дмитрий - November 21, 2023

Необходима прошивка на ingroon KP3S Pro V2 (ver 2.0)

Дмитрий Моисеев - November 19, 2023

Здравствуйте , нужна прошивка на плату kingroon kp cheetah v2.2 на принтер KLP1 . на официальном сайте нет
Hello, I need firmware for the kingroon kp cheetah v2.2 board for the KLP1 printer. not on the official website

Дмитрий - November 19, 2023

Здравствуйте у меня KLP1 с экраном выходит вот такая ошибка :
Pin ‘PE11’ is not a valid pin name on mcu ‘mcu’

Once the underlying issue is corrected, use the “RESTART”
command to reload the config and restart the host software.
Printer is halted
Перезагрузка не помогает, ошибка остается.

Dmitriy - September 16, 2023

Replacing the fan led to an error. Firmware KINGROON-KP 3S Pro V2 V2.4-20230818 no result.
mcu ‘MKS_THR’: Unable to connect
Once the underlying issue is corrected, use the
“FIRMWARE_RESTART” command to reset the firmware, reload the
config, and restart the host software.
Error configuring printer

Leave a comment

* Required fields