Marlin: Err: EEPROM VERSION

[iMeeHz3D]

Hi, i'v been install the new marlin 2.0.5.1 today.

I don't know if i have do an error during the codage, but i have an error when i start my 3D printer !
The message is visible in the same place of a thermistance error.

I think it's not annoying for print but i haven't tested.

I want to know if i'l alone to have this problem !

Thank

[GMagician]

Try with M502 & M500

[ellensp]

3D printers 101: They only do what you tell them to do. The language they use is called g-code.
see https://marlinfw.org/meta/gcode/ where you can look up what the gcodes M500 and M502
You send the printer these gcodes and it does very basic things, move, home, heatup save settings etc

[djamelfel]

Hello @iMeeHz3D ,
I just made the update too and get the same behavior than you.

Did someone know why my printer is complaining and how to solve this without doing any m502 & M500.

Thanks

[randellhodges]

The structure of the stored data changed between versions. You cannot solve it without doing an M502/M500.

If you have the .bin file for the old version, you can try flashing back to the old version, then restart and if you don't have the error, run M503 and copy those settings somewhere. Then flash the new firmware, run M502/M500 and then M503 and compare the results with what you saved before and change whatever you need to change.

[djamelfel]

Thanks you for the explaination, it's clear and all good :)

[thinkyhead]

I've just patched bugfix-2.0.x EEPROM error handling in a way that (hopefully) improves it.

[github-actions[bot]]

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