Some iOS 6.1.3 users hit by battery drain and Wi-Fi issues

The latest iOS update seems to be creating trouble for a number of users chiming in on Apple's support forums.

Image created by Josh Long/CNET

Another iOS update, another round of complaints.

Released last week, Apple's iOS 6.1.3 was designed to fix a security hole that let someone access the iPhone by sneaking past the lock screen. But the update also seems to have plagued some users with other problems, according to blog site Gotta Be Mobile.

The persistent battery drain rears its ugly head again with iOS 6.1.3. Several people posting on Apple's Support Communities forum say the battery drains faster after installing the new update. Some have tried the usual fixes, such as turning off notifications and restoring the device to factory settings, but say their battery charge still doesn't last long.

Battery drain seems to be a constant complaint with every new iOS update. Just how pervasive a problem is it?

A significant number of people ran into battery drain woes with iOS 5.0, forcing Apple to release several subsequent updates to try to resolve the problem. Even after those updates, several users said they continued to experience battery drain with each new update.

Another iOS 6.1.3 glitch affecting some users is Wi-Fi connectivity. Several Apple forum commenters say their Wi-Fi connections are grayed out or inoperative. This particular issue has been around since iOS 6.0. Some say the problem was fixed with iOS 6.1.2 but came back with 6.1.3, while some say it was resolved with 6.1.3.

Apple has acknowledged the problem in the past and offers a support page with suggestions on resolving it.

Still one more issue affecting a few people is a battery drain that occurs when connecting to Microsoft Exchange -- another problem that's been around awhile. This one was supposedly fixed with iOS 6.1.2 but still seems to trouble a certain number of people.

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