The phone has a 1 year warranty. You have 365 - however many days you have owned it.
I don't understand the "3 days" thing. Samsung takes battery issues seriously.
"SAMSUNG ELECTRONICS AMERICA, INC." warrants that this Product is free from defects in material and workmanship under normal use and service for the warranty period. The warranty period commences upon the date of purchase by the first consumer purchaser and continuing for the following specified period of time after that date:
|Device :||1 Year|
|Batter(ies)*, including Internal Batteries :||1 Year|
|Other Accessories*:||1 Year|
Hello, @caiya72. Thank you for stopping by. We're truly sorry for this inconvenience with the phone. In this situation, you'll need to send the phone to the Samsung warranty department so they can repair it. -Kira_M.