Rambo v1.4 change firmware to other new one

I would need to know if I can use this rambo v1.4 to my 3d printer.
It is preflashed with one specific firmawe, but I need to change it to other different firmware. I only have it compiled.
Is this PCB available to change the firmware easily?
Thank you for your help!

If you have a compiled version of the new firmware, and that compiled version is made for the Rambo 1.4 board, then you can use XLoader to move the firmware to the board.

It is likely you have compiled firmware for the original control board for your machine, and it is likely that control board was not a Rambo 1.4 board. If so, your compiled firmware will not work. You need firmware specifically configured for your 3D printer, and specifically compiled for the Rambo 1.4.

Assuming your original control board was running Marlin, you should be able to find or configure a version of Marlin for your 3D printer. You would need to compile that firmware using something like PlatformIO.

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