turn printer off, check motherboard version, mines 4.2.2.
download latest release for your model.
https://github.com/mriscoc/Ender3V2S1/releases/latest
Mine has CR-TOUCH so i get...
Ender3V2-422-BLTUBL-MPC-20240125.bin
https://github.com/mriscoc/Ender3V2S1/r ... 240125.bin
copy the file into the root of your sdcard and insert into printer.
f:\Ender3V2-422-BLTUBL-MPC-20240125.bin
power printer on, give it a minute and the firmware will be loaded. I chose not to change my touchscreen firmware.
YOU WILL NEED TO CALIBRATE EVERYTHING AGAIN (including e-steps (do this first))!
I have the Micro Swiss NG™ Direct Drive Extruder for Creality Ender 3 V2 Neo so my E-steps are 'M92 E408.55721'. I use pronterface to set this as the firmware only goes to 1 decimal (which is probably sufficient for most people).
E-step calculator:
https://teachingtechyt.github.io/calibr ... tml#esteps
calibrations:
https://github.com/mriscoc/Ender3V2S1/w ... librations