I found this phone and have been using it for a while. I just use it over Wi-Fi no sim card. I need to update it to Lollipop because I failed to update it says "Update Failed". Im just aware am I going to get caught that I found the phone if I bring it to Best Buy for update? I contacted Samsung Support and they told me to bring the phone to Best Buy for update. Should I go to best buy for update? Its T-Mobile Samsung Galaxy S5