If an axis from the previous step moves in the wrong direction power off your printer and disconnect the touchscreen.
In the aruino IDE go to the "configuration.h" tab.
Scroll down to lines 855-858. (Go to File -> Preferences and check "Display line numbers")
#define INVERT_X_DIR true
Change true to false to switch the motors direction depending on the problem axis (X, Y or Z).
Re-upload the firmware.
Once uploaded, connect back the touch screen and power up the printer from the mains again.
Continue from the previous step.
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