A little over a week ago, an update to ultrasn0w brought a software unlock for iPhone 4 owners. Unfortunately, that release was also blamed for users experiencing a drastic decrease in battery life; some have reportedly seen the battery drop 5% an hour while the phone was in sleep mode. For those who rely on the unlock for their iPhones, the good news is that ultrasn0w has just been updated once again with a several tweaks that’s supposed to fix the issue. If you were previously on 1.0-1 and found your battery life affected, you may want to install version 1.1-1 via Cydia. For instructions on how to get ultrasn0w running, take a look here. And speaking of battery performance, if you find your iPhone 4 draining exceptionally fast, make sure that you had in fact set it up as a new phone, as opposed to restoring from an old backup.[via iPhoneinCanada]
Many of you may already have an iPhone 4, but there’s bound to be a number of users out there who opted not to purchase the phone outright as a factory unlocked model. If this is the case and you wish to use your iPhone 4 on another carrier (great for overseas travels – simply buy a local pay-as-you-go sim card to avoid exuberant roaming charges), you may now do so as the unlocking tool, Ultrasn0w, has just been updated to support the iPhone 4.
Version 1.0-1 of ultrasn0w works for:
- iPhone4 baseband 01.59
- 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04
Needless to say, you must have a jailbroken iPhone to install ultrasn0w, but thanks to Comex, jailbreaking is now as easy as visiting JailBreakMe.com on your mobile safari. Once the process is complete, all that needs to be done is to install ultrasn0w via Cydia. If you can’t find the tool under search, you can manually add the repo: repo666.ultrasn0w.com. Take a look at the step-by-step video from youtuber @AdamFromYT after the break.