Apple silently released an update especially for iPhone 5 yesterday to fix a minor bug. The baseband version stayed the same at 3.04.25.
The latest iOS update which is meant for iPhone 5 only is designed to fix and update the audio profile for speakerphone. If you’re not a frequent user of your iPhone’s speakerphone, the update may not be entirely useful for you.
A user who updated her iPhone 5 to iOS 6.1.4 said:
It makes the speaker sound much more clearer then before tried a call and used the speaker and i find it made a big improvement fro before! much clearer sound!
However, many people may not notice the difference. Probably it’s just purely psychological.
There was no change in the modem firmware (baseband) version 3.04.25, which means it’s still exploitable to be unlocked using R-SIM or any other similar SIM interposer. However, if you have already jailbroken your iPhone 5 using evasi0n you should avoid updating it because you will lose your jailbreak.
Since there’s no bootrom level exploit publicly available yet, you can’t downgrade your iPhone 5 to previous iOS version once you’re on iOS 6.1.4. Unfortunately you’ll have to wait until the next jailbreak is released. If you’re new to using iPhone, this will become a painful lesson especially if you rely a lot on your jailbreak apps.
High battery drain which is a widely reported issue among iPhone users is probably not yet resolved in iOS 6.1.4. A user on Apple support forum reported that the problem got worse after updating his iOS. It’s difficult to pinpoint whether this an just an isolated incident or will it affect all iPhone 5′s. Apple is currently doing a total overhaul of the iOS so maybe the battery issue will be resolved in iOS 7.
The size of the patch is approximately 12MB which should take you a few minutes to download and apply the update.
Have you installed iOS 6.1.4 yet?