My Note 8 GT-N 5110 is 6 years old, all was fine and like everyone else it was fine one day and next morning good night Irene… There were no clues it was on it's way out, charged fine, battery drain didn't get worse over time. Every year I'd clean-up back to factory settings. This is sad but not as bad as IOS where the operation came to a grinding halt. I xtill have the first ipod that worked fine for 4 years and then the date reverted to 1969 and nothing worked until I set to current time and next day back to 1969.. Now that is deliberately set by apple to force people to buy new ones..