Quote
Roberts_Clif
All functions work perfectly only displaying " Endstops Z " or sometimes " G28 Z Forbidden " thou still Prints a perfect 3D Model.
M500 " CRC memory errors ???? " are scary because don't know what the 3D Printer will do with CRC Errors.
Asking for Help - What can I do to fix this.
My guess is the CRC errors are because there was a change from checksum to CRC to guard the EEPROM configuration data. If an error shows up Marlin will use the values in the Configuration.h files instead of what is stored in the EEPROM.
If you want to 'correctly' initialize the EEPROM for a given version of Marlin, the proper steps are to do a M502 followed by a M500.