@Veti Thanks once again!!!

@Veti What are the main differences, besides the mgn rail?

@Veti , if you ever stop by Portugal, I'll buy you a crate of beer or wine, which one you prefer!

Thanks a lot! Now it's calibration time...

But I still don't understand why did it all go bezerk, with the normal shutdown...

@Veti , you are a life saver! It worked just fine!!!

Regarding the leadscrew, I've must have chaged that when I compiled a new instalation in the RRF Config Tool. I'm using an 8mm, step 4 lead screw...

Is this correct?

@Veti M119
Endstops - X: not stopped, Y: not stopped, Z: at min stop, Z probe: not stopped

But I do not have a Z probe... Should this be appearing?

@Veti Endstops - X: at min stop, Y: at min stop, Z: at min stop, Z probe: not stopped

@Veti It is a Hypercube Evolution 2020

It never reachs the endstops, and when I force the home process, it slams against the endstops.

Good afternon. After powering down my machine, from wich I just had printed 2 calibrations cubes on it, when I powered it up, if fails to home in all axys, wich is stopping me from printing.

My config.g files is at it goes.

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Oct 10 2020 10:10:05 GMT+0000 (Hora Coordenada Universal)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Hypercube" ; set printer name
M669 K1 ; select CoreXY mode

; Network
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 forwards
M569 P1 S0 ; physical drive 1 goes forwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z2560.00 E873.08 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E180.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S0 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X300 Y293 Z300 S0 ; set axis maxima

; Endstops
M574 X1 Y1 Z1 S1 ; set active high endstops

; Z-Probe
M558 P0 H2 F120 T3000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20 ; define mesh grid

; Heaters
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45 ; set fan 1 value, PWM signal inversion and frequency. 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

The result of the M122 command:

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05.1 running on Duet WiFi 1.02 or later
Board ID: 08DGM-956GU-DJMSJ-6J9FG-3SN6R-9UQMF
Used output buffers: 1 of 24 (8 max)
=== RTOS ===
Static ram: 25712
Dynamic ram: 93140 of which 416 recycled
Exception stack ram used: 272
Never used ram: 11532
Tasks: NETWORK(ready,628) HEAT(blocked,1232) MAIN(running,3736) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:01:19 ago, cause: power up
Last software reset at 2020-10-10 10:27, reason: User, spinning module GCodes, available RAM 11372 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 21.8, current 27.4, max 28.0
Supply voltage: min 12.3, current 12.4, max 12.5, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2020-10-10 14:13:13
Cache data hit count 235083728
Slowest loop: 8.13ms; fastest: 0.06ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 15.48ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8

• WiFi -
  Network state is running
  WiFi module is connected to access point
  Failed messages: pending 0, notready 0, noresp 0
  WiFi firmware version 1.23
  WiFi MAC address 5c:cf:7f:76:6d:07
  WiFi Vcc 3.36, reset reason Turned on by main processor
  WiFi flash size 4194304, free heap 24232
  WiFi IP address 192.168.1.84
  WiFi signal strength -65dBm, reconnections 0, sleep mode modem
  Socket states: 0 0 0 0 0 0 0 0.

I've reinstaled everything, with no sucess. I've tried to downgrade to 2.05, also with no sucess.

I've checked my cabling in order to confirm that there was no loose wires.

The videos ot this behaviour are the following:

https://vimeo.com/466872481

https://vimeo.com/466872441

https://vimeo.com/466872384

I'd really appreciate all the help I can get! Thanks a lot!!!

Well, this is solved! I've just cheked with the store, and this is the bed limit!!!
Just got fooled...

Thanks for all the help!