A:AnswerWarranty is useless if the refurbished phone was activated more than a year ago. Bought a refurbished iphone 6s from Best Buy in January 2020. It wouldnt work after 6 month use. Best Buy would not honor the warranty since the original activation was 2018. Warranty was already worthless when I bought the phone. Very upset as I paid almost $200 for the phone. If you still want to purchase the refurbished phone, make sure you know its original history through its IMEI. Wont be easy as Best Buy employees are reluctant to open the packaging to get the information. Good luck.
A:AnswerRubbish! Bought a phone which died within 6 months. Apple said it was first activated in August 2018 and again in 2019. Best Buy says sorry it's between you and Apple and won't do anything about it even though I bought it there as a certified refurbished phone which had been reset to factory standards.
A:AnswerApple iPhone batteries are non removable , so it will be its original battery .
It can be done through a repair shop , but its a painful process , google it , you'll find out.