LERDGE K BOARD E0 MOSFET PROBLEM

Hi everyone I have Anycubic Chiron with a lerdge K V2.0.1 board and i don't know how my mosfet on E0 Hotend it's burned completely. I have tried almost everything I know.. in the firmware settings have tried one extruder with two filaments in, two separate extruders! the E1 Hotend it is not working correctly when the E1 Hotend begin to print the Z axis not move, print the first 2layers and then presses the plastic on the bed! i need some help from you who know better than me if there is a way to remove E0 Hotend some how from the firmware and start printing with E1 as the main hotend.

(I'm trying to find a way for E1 to work as the main extruder. my drivers is ok. all the axis working and homing correctly)

thanks for your time forgive me for my english

Edited 1 time(s). Last edit at 08/14/2021 09:03AM by nikdfzz.

edit Marlin/src/pins/stm32f4/pins_LERDGE_K.h

find

#define E0_STEP_PIN                         PC14
#define E0_DIR_PIN                          PC13
#define E0_ENABLE_PIN                       PC15

#define E1_STEP_PIN                         PF1
#define E1_DIR_PIN                          PF0
#define E1_ENABLE_PIN                       PF2

and swap the E0 <-> E1 to swap extruders

#define TEMP_0_PIN                          PC1   // Analog Input
#define TEMP_1_PIN                          PC2   // Analog Input

swap to change Temperature Sensors

and finally

#define HEATER_0_PIN                        PA1
#define HEATER_1_PIN                        PA0

to swap hot end heaters.

Now E0 is what was formally E1 and E1 is now the broken formally E0

thank you appreciate!!! I tried to do it now. if I have a question can i ask you?