Updating controller firmware problem - Marlin

I have tried to calibrate my printer again but after uploading firmware it doesn't remember changes, it is still like before, everytime I change settings in marlin firmware nothing changes after uploading it.
What can ve wrong??

You need to do a M502 to load the settings from the Configuration.h file. And then you need to do a M500 to store them in EEPROM.

And how to do that with arduino software?

You dont

Those are gcodes you send to your printer to reset the eeprom to the settings in your firmware

I have 2 of this printers and never needed to do that before

depending on your electronics some are setup so that when you upload new firmware the eeprom is also cleared. (google arduino fuses )

Or you can disable the eeprom features in firmware so its never used.

Or you never used it even when it was enabled, Until eeprom settings are saved for the first time the controller uses the firmware settings, only after first use does the eeprom take precedence over firmware settings

Edited 1 time(s). Last edit at 09/30/2016 06:54AM by Dust.

Both of them are GT2650
Will try again