Hacker News new | ask | show | jobs
by 05 3779 days ago
You certainly can - you can try it out yourself by rebooting the phone while connected to USB with Home button pressed - it will reboot to the Recovery mode that (since iTunes 12 AFAIR) allows you to choose between update and restore. Should you choose 'update', it will keep your data and rewrite the system partition, all without asking for your PIN.