A basic sum up of what happened:
Red V5: I lost intrest in tamagotchis so I kept it paused for months and months. Months later there was a blank screen. I could not reset or download. I took the battery out a day later. Then 4 months later I put in new batteries. Then I see a "WAIT..." screen. It was reset.
Black V5: This one was on pause for months aswell, only when I looked at it the screen froze on the helicopter in the travel show. I pressed the A button and it went to 3 eggs, there was a Reset/Download option, I chose download and the screen fainted. I could reset/download, but after 3 times it gave up completely. Many months later I put new batteries in and it also said "WAIT..."
White V5: This is a different story. My tamagotchis had died. I left them on the spaceship for a few weeks. I picked my tama up and pressed a + c, then the screen fainted and I couldn't download or reset. I put batteries in today, it let me download so I was like "YIPEE!!!!!" but then the tama reset itself after trying ot connect with another V5. :mimitchi:
Hope this helped ya.