Aug 11
You might have iPhone 4 battery issue if you recently unlocked iPhone 4 using ultrasn0w 1.0-1.
Dev-Team has released ultrasn0w 1.1-1 with a few tweaked things that may help with standby battery life.
Here’s the official information from dev-team’s twitter account:

You can upgrade ultrasn0w by going to Cydia and let it downloading updates. Once done, you can search for “ultrasn0w” in Cydia, tap Modify, then Upgrade.

Information from sherif_hashim
i4 battery issues with ultra 1.0-1?, update via cydia to 1.1-1, 6 hours of heavy usage + 3 hours standby still at 92% , thx @planetbeing 
about 2 hours ago via Twitterrific
If you haven’t unlocked your iPhone 4, read this guide: How-to Unlock iPhone 4.
Tagged with: battery • ultrasn0w • Unlock
Aug 05
How to unlock iPhone 4 baseband 01.59.00 by using UltraSn0w 1.0-1
*Note: If you are still using ultrasn0w 1.0-1, please upgrade it to 1.1-1 to fix battery issue on iPhone 4
Before start unlocking iPhone 4, make sure you baseband (a.k.a modem firmware) version is 01.59.00
Read this guide how-to check iPhone baseband version.

Before you can unlock iPhone 4, you will need to jailbreak your iPhone 4 first. If you haven’t jailbreak your iPhone 4, read this guide: How-to Jailbreak iPhone 4
Here are steps how-to unlock iPhone 4
Continue reading…
Tagged with: Cydia • iPhone 4 • ultrasn0w • Unlock
Aug 03
Now, you can unlock any iPhone with 05.13.04 baseband by using ultrasn0w 0.93.
If you have a factory unlock (FU) iPhone, you do NOT need to read this guide, because your iPhone has unlocked already 
You need to jailbreak your iPhone before you can unlock it. Read any of these tutorial to jailbreak your iPhone.
The baseband version of iOS4 is 05.13.04. Now, you can unlock 05.13.04 baseband by using ultrasn0w 0.93. Check your baseband version and make sure the baseband version is 05.13.04 before you continue reading this guide.
How to jailbreak iOS4
Here are steps how to unlock your iPhone:
Add repository to cydia: repo666.ultrasn0w.com and then install ultrasn0w 0.93. Wait for few minutes, then you will have an unlocked iPhone.
Tagged with: Baseband • Cydia • Unlock
Jul 14
MuscleNerd and planetbeing, members of Dev-Team are working hard to unlock iOS4 on the new iPhone 4.

My soft-unlocked iPhone 4 (in Canada). I’ll have video in a couple of hours once I can top-up the SIM.
source: http://twitpic.com/24ycdv
As you can see in the top left corner, it said Bell, not AT&T, which is means it has been unlocked. iPhone 4 unlock tools will be available soon, waiting for Apple to release iOS4 software updates.
Continue reading…
Tagged with: Cydia • iPhone 4 • Unlock
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