@jay_s_uk Thanks for your time ! I have this error :

G28 Z
Error: in file macro line 7: G30: Z probe 0 not found

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sat Dec 03 2022 18:32:56 GMT+0100 (heure normale d’Europe centrale)
G90
G1 X130 Y130 F6000
G30

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Hello everyone,

I am posting this message on the forum because I am currently refurbishing my machine (Creality Ender 3 Pro). I have a Duet 2 WiFi and a BL Touch. I have an issue when I try to "home all" or "home Z". The printer correctly homes the X and Y axes using the original endstops, but not the Z axis. I believe the problem lies in my configuration files (config / homeall / homez). The sensor is properly connected, but I think it is not correctly declared in the configuration file of the board.

Thank you for your help!
Config file :

; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sat Dec 03 2022 18:32:56 GMT+0100 (heure normale d’Europe centrale)

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"Ender 3 Pro"                            ; set printer name
M918 P1 E4 F2000000                            ; configure direct-connect display

; Network
M551 P"kisskiss64"                             ; set password
M552 S1                                        ; enable network
M586 P0 S1                                     ; enable HTTP
M586 P1 S0                                     ; disable FTP
M586 P2 S0                                     ; disable Telnet

; Drives
M569 P0 S0                                     ; physical drive 0 goes backwards
M569 P1 S0                                     ; physical drive 1 goes backwards
M569 P2 S1                                     ; physical drive 2 goes forwards
M569 P3 S0                                     ; physical drive 3 goes backwards
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E93.00               ; set steps per mm
M566 X1200.00 Y1200.00 Z24.00 E300.00          ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z180.00 E6000.00        ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E5000.00          ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1000 I50                  ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                        ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                               ; set axis minima
M208 X235 Y235 Z260 S0                         ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                            ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                            ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S1 P"zstop"                            ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop

; Z-Probe
M558 P9 H5 F120 T6000                              ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.7                                ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20                           ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B0 S1.00                               ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                        ; map heated bed to heater 0
M143 H0 S150                                   ; set temperature limit for heater 0 to 150C
M308 S1 P"e0temp" Y"thermistor" T100000 B4092  ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S275                                   ; set temperature limit for heater 1 to 275C

; Fans
M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan2" Q500                           ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H1:0 T45                            ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0                               ; define tool 0
G10 P0 X0 Y0 Z0                                ; set tool 0 axis offsets
G10 P0 R0 S0                                   ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

Home all config file :

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sat Dec 03 2022 18:32:56 GMT+0100 (heure normale d’Europe centrale)
G91                     ; relative positioning
G1 H2 Z5 F6000          ; lift Z relative to current position
G1 H1 X-240 Y-240 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000       ; go back a few mm
G1 H1 X-240 Y-240 F240  ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-265 F240        ; move Z down stopping at the endstop
G90                     ; absolute positioning
G92 Z0                  ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91                    ; relative positioning
;G1 Z5 F100             ; lift Z relative to current position
;G90                    ; absolute positioning

Home Z config :

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sat Dec 03 2022 18:32:56 GMT+0100 (heure normale d’Europe centrale)
G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Z-265 F3000 ; move Z down until the endstop is triggered
G92 Z0            ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91              ; relative positioning
;G1 Z5 F100       ; lift Z relative to current position
;G90              ; absolute positioning

@Herve_Smith Good evening all the home works perfectly but I have another problem I don't see how to adjust the offset between the probe and the nozzle I know that I know in the G31 command but I don't understand how it works because the home works a la perfection in X and Y but the nozzle is at least 0.5 cm from the bed and the BLTouch does not retract so when I go down the Z axis the sensor blocks and displays the values ​​1000 it looks like a kind of security

@Herve_Smith Thank you very much for all your advice I just have 2 last questions how do I define on the machine that the BLTouch is 45mm to the left of the nozzle. and can i have your grid map please.

@Herve_Smith LOL but your Mesh.g contain your M557 ?

@Herve_Smith Thanks you !! it work do you have the probe map file for creality ?

@droftarts It work's !!!! But how i home with it beacaused i need to home in X and Y before home in Z and th BLTouch doesn't deploy and is out of bed

@Iker It work's !!!! But how i home with it beacaused i need to home in X and Y before home in Z and th BLTouch doesn't deploy and is out of bed

@dc42

@dc42 How can I be sure it's coming from the sensor?