3 ms·You have to enter it every 48 hours.by 4ad 11y agoYou have to enter it every 48 hours.ralmeida 11y agoOnly if you don't unlock the phone in these 48 hours, no?4ad 11y agoNo, you have to enter it every 48 hours, regardless of what you have done with the phone in these 48 hours, and at every phone boot.