There has been a lot of hype regarding the 12:15 a.m. crash bug that has already infected many devices around the world. There were many guides released by the websites in order to prevent or fix that bug.
However, there are many people that are unaware of that bug and might face difficulties using their phones. So that’s why Apple has urgently released a new iOS 11.2 update earlier than expected and this has fixed that bug. So if you are facing difficulties then you should upgrade your iPhone right now. Talking about the size of this update, its about 440 MB long.
And if you are wondering if some features are missing then you are wrong. All the new features are included. So you can experience everything earlier. Anyways, you should upgrade right away to prevent or remove that annoying bug because it makes the phone completely unusable.