This is precisely what I cannot understand. I have changed my 8-bit 1.1.4 board to this 32-bit 4.2.7 in order to take better advantage of the 32-bit potential and it turns out that the firmware is much simpler than the one with the 1.1.4 board installed. I do not understand how you can have such a large community of owners completely abandoned. That's why we see so many people avoiding buying the 1.1.5, 4.2.2 and 4.2.7 and upgrading their printers with SKR boards that are cheaper on top of it. If Creality continues down this path, it's going to lose a ton of plate sales to upgrades.

Icí : https://www.youtube.com/watch?v=neS7lB7fCww
Minute : 11:23

Others firmwares on Creality Official :
https://forums.creality3dofficial.com/ender-series/

L'écran possède son propre firmware. Vous devez le démonter et mettre son firmware dans la fente MicroSD qui a l'écran. Rechercher sur youtube comment faire

I have installed a 4.2.7 board in my ender pro with bltouch. I have installed the new and old firmware and I have noticed that the Pause function for filament change is not implemented.
For example: M600 is not accepted. Skip it and continue with the next instruction.
Another example: Single bed leveling (Without BLTOUCH).
M117 LEVELING IN PROGRESS;
G28; Home all axis
G04 P500;
M117 I go to point 1;
G1 Z5; Lift Z axis
G1 X32 Y36; Move to Position 1
G1 Z0
G04 P300;
M0; IT DOES NOT WORK

M0 WORKS BY SETTING TIME IN SECONDS
M0 S10 Press to continue;