If you are experiencing problems with saving the configuration data to the EEPROM and you are using a factory default H/W v.1.x or v.2.x then the EEPROM_HW_Ver1 or EEPROM_HW_Ver2 programs can help writing the right EEPROM type ID and RFzero H/W version to the EEPROM.

After a successful upload you may then proceed to the program you originally intended to use.

The output on the serial monitor after a successful upload of the EEPROM_HW_Ver1 program.

The output on the serial monitor after a successful upload of the EEPROM_HW_Ver2 program.