creality ender 3 – Factory reset needed!

M502 and M500 are not files, they are G-code commands (well, they are actually M-codes, but don’t worry about that)1.

To reset your printer to the factory default settings, simply connect a terminal and send M502.

If you are using Linux, see How to directly send G-code to printer from a Linux terminal?

See also M502 will reset all configurable settings to their “factory defaults”, which settings are those?

1 Simply put: G-codes control movement; whereas M-codes control other functions (which aren’t movements).

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