Info
NEJE 3 and NEJE 3 Plus share the control board, The control board of NEJE Max 4 can also be used as NEJE 3 Max(the control board of NEJE 3 Max can’t be used as NEJE Max 4), So here is a way to change the motherboard model.
Step
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Note
Bluetooth name will change after next reboot.
GRBL setting and NEJE setting will reset after changing model.
NEJE Max 4 need Z axis connected at homing, otherwise, fail homing.
NEJE 3 Max don’t need Z axis connected when homing. Z homing when you send command “$H z”(GRBL).
Wrong device model can lead to errors, try it only when you know what you are doing.