Guides

How to Fix iPhone iOS 4.1 Battery Life Problems

Some unlucky iPhone users got the short end of the battery life after updating to iOS 4.1. Users have reported battery life issues among other problems with prior firmware updates (remember iPhone OS 3.1?) but now some running iOS 4.1 are seeing their battery percentage drop to zero within hours.

apple iphone ios 4.1 3GS battery life bug

Online discussion forums are hopping with activity from iPhone 4 and iPhone 3GS users complaining of shortened battery life and warm phones running iOS 4.1. Some reports have suggested that errant processes are running in the background constantly and draining the battery power. Bugs in the modem firmware, tethering software, and Game Center have all been cited as possible causes of the issue.

Downgrade iPhone iOS 4.1 to iOS 4.0.1 / 4.0.0 / 3.1.3

Sometimes for whatever reason an iPhone firmware upgrade ends up being counterproductive or causes issues with your individual phone. Maybe you're experiencing battery life problems with iOS 4.1 on your iPhone 3GS. Updates can even happen by accident with the wrong click of a button, wiping a jailbroken device.

If you have already saved your SHSH files for one or more earlier firmware versions on Saurik's server, you can follow these steps to downgrade from iOS 4.1.

How to Activate iPhone Tethering With Firmware 3.1.2 (3G and 3GS)

Now that Geohot has released the blackra1n RC3 jailbreaking tool, activating tethering on an iPhone 3G or 3GS is a snap. Many international users already have tethering, meaning they can share their iPhone data connection with a computer. AT&T does not offer this option in the US.

Fortunately it's never been simpler to tether if your iPhone is running the latest firmware (3.1.2). Follow these steps to activate tethering, just keep in mind you are breaking all kinds of agreements with AT&T and Apple in the process.

How to Activate MMS on the Original iPhone (2G)

You may have been lead to believe that your original iPhone was so dated the radio couldn't handle MMS (Multimedia Messaging Service) even if if Apple and AT&T wanted it to. The truth is out there, and it has arrived in the form of an app available now via Cydia.

apple iphone 2g mms

ActivateMMS2G is an application that promises to activate MMS capabilities on your original iPhone. The software will specifically NOT work with the iPhone 3G or the 3GS, which are slated to receive MMS support from AT&T later this summer.

How to Activate Tethering on iPhone OS 3.0

AT&T does not currently allow tethering on the iPhone even though Apple's iPhone OS 3.0 includes the feature. The company is still deciding what a tethering data plan for iPhone would cost and how it would be structured.

Tired of waiting? If you have an iPhone 3G or 3GS running OS 3.0 and a computer running iTunes 8.2 on Mac OS X here's how to activate tethering. You will be able to connect your computer to the AT&T data network using USB or Bluetooth via your iPhone.

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