i put my sherbet furby, slushy, into the diagnostics mode while doing maintenance on them. their mechanisms do work but they came to me in bad shape and didnt boot at all when i first got them so i had to do the advanced motor force start to get them working. anyway.
note that this only applies to furbys running the revised firmware (more phrases, deep sleep added). i think.[]
soft resetting the furby while it's in diagnostics mode will send "corrupted" data to the eeprom (responsible for storing and saving data pertaining to the furby's name, voice pitch, and proficiency stage), but im not sure if it's actually corrupted data or an error due to the revised firmware. notable differences with this eeprom data are:
the furby's voice pitch will be somewhere between low and medium
the furby's name will always be doo-moh (please)
the furby will always be sick no matter how much they are fed. even if they say that they are done eating, they will still sneeze and complain about being sick
hard-restarting is the only way to fix this. to hard restart, turn your furby upside down and hold their tongue button. while holding them upside down and pressing their tongue, press the reset button. this will clear the eeprom and your furby will go back to normal!
this also happened to ee-day when i put him in testing so it must be the revised firmware, but further research is needed
this is also on babies, but the voice is higher then normal babies and the baby's name will always be boo (no/stop/bad/negatory). they will also be on the second proficiency stage so theyll speak the language theyre programmed to "learn"