Have you seen a “patched” update file? Run a malware scan immediately. If your phone still boots, back up your photos and retire it.
Instead of searching for a patched Lollipop, do this:
Settings > Developer Options > Window/Transition/Animator scale → Set all to or Off .
Go to Settings > About device > Software update and select Update now .
To update a device from to 5.0 (Lollipop) , you can either use the official system update or, if official support has ended, install a "patched" custom ROM. Method 1: Official System Update