Extruder colliding with bed when homing

Hi there, have just installed 4.0.4 on my Balco Touch printer (no BLTouch) and whenever I try and home Z it collides with the print bed. I can hear the z end switch click then the motors continue moving into the bed. Not sure if I have missed something or if there is a bug? I have confirmed I am using the correct firmware for my model and everything.

Any advice would be greatly appreciated!
Thanks,
Ben

Can you give more information: what file have you flashed? What is the exact model number of your printer and from where do you buy it?

Apologies, it was user error. While the box of the device calls the printer ‘Aldi Balco 3D Touchscreen’, it’s actually the model with the USB port and 5.2c revision board once I opened it up.
Have flashed the correct firmware now and all is well.

It is a common mistake: apparently, Aldi/Balco is selling two different printers (mainboard 5.1 and 5.2c) with the same model number!