i know a site that gives instructions on how 2 debug your tamagotchi first u unscrew they back of they tamagotchi and you should see 4 smaller screwes unscrew them then there should be a circle with writtin above it debug scratch it but dont scratch it offtape the battery inplace turn your tamagotchi around and click reset now you should be able to press a and pick a character and enjoy for images of this being done go two
https://www.pixelmood.com/tamagotchi_connection_debugging.htm
https://www.pixelmood.com/tamagotchi_connection_debugging.htm
